L-Alanine | 56-41-7, L-Alanine Formula

Description

A white, odorless powder having a sweet taste White crystalline powder

OtherSolid|Solid

L-alanine is the L-enantiomer of alanine. It has a role as an EC 4.3.1.15 (diaminopropionate ammonia-lyase) inhibitor and a fundamental metabolite. It is a pyruvate family amino acid, a proteinogenic amino acid, a L-alpha-amino acid and an alanine. It is a conjugate base of a L-alaninium. It is a conjugate acid of a L-alaninate. It is an enantiomer of a D-alanine. It is a tautomer of a L-alanine zwitterion.|Alanine is a non-essential amino acid that occurs in high levels in its free state in plasma. It is produced from pyruvate by transamination. It is involved in sugar and acid metabolism, increases immunity, and provides energy for muscle tissue, brain, and the central nervous system.|A non-essential amino acid that occurs in high levels in its free state in plasma. It is produced from pyruvate by transamination. It is involved in sugar and acid metabolism, increases IMMUNITY, and provides energy for muscle tissue, BRAIN, and the CENTRAL NERVOUS SYSTEM.

L-Alanine Basic Attributes

Molecular Weight：

89.09

Exact Mass：

89.09

BRN：

1720248

EC Number：

200-273-8

DSSTox ID：

DTXSID20107828

Color/Form：

Orthorhombic crystals from water|White crystalline powder

HScode：

29224995

Characteristics

PSA：

63.3

XLogP3：

-3

Appearance：

White to almost white powder

Density：

1.432 g/cm³ @ Temp: 22 °C

Melting Point：

300 °C (decomp)

Boiling Point：

250 deg C (sublimes)

Flash Point：

82.6ºC

Water Solubility：

H2O: 166.5 g/L (25 ºC)

Storage Conditions：

Store at RT.

Vapor Pressure：

1.05X10-7 mm Hg at 25 deg C (est)

Specific rotation：

14.5 º (c=10,6N HCl,dry sub.)

Odor：

Odorless

Taste：

Sweet taste

PKA：

2.34(at 25 °C)

Henrys Law Constant：

Henry's Law constant = 1.5X10-9 atm-cu m/mol at 25 °C (est)

Dissociation Constants：

2.34 (at 25 °C)|pKa1 = 2.34 /carboxylic acid/; pKa2 = 9.69 /primary amine/

Experimental Properties：

PRISMS; DECOMP @ 204 °C /L-ALANINE HYDROCHLORIDE/|UV: 2-10 (Organic Electronic Spectral Data, Phillips et al, John Wiley & Sons, New York) /Alpha-alanine (dl)/|Hydroxyl radical reaction rate constant = 3.5X10-11 cu cm/molecule-sec at 25 °C (est)

Safety Information

Hazard category：

IRRITANT

wgk germany：

3

hazard class code：

36/37/38

safety instructions：

24/25-36-26

RTECS Number：

AY2990000

Marks：

Xi

Stability/Shelf Life：

Stable. Incompatible with strong oxidizing agents.

Precautionary statement(s)：

P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, P501

Hazard Statements：

H315

Disposal Methods：

SRP: At the time of review, criteria for land treatment or burial (sanitary landfill) disposal practices are subject to significant revision. Prior to implementing land disposal of waste residue (including waste sludge), consult with environmental regulatory agencies for guidance on acceptable disposal practices.

FDA Requirements：

L-Alanine is a food additive permitted for direct addition to food for human consumption, as long as 1) the quantity of the substance added to food does not exceed the amount reasonably required to accomplish its intended physical, nutritive, or other technical effect in food, and 2) any substance intended for use in or on food is of appropriate food grade and is prepared and handled as a food ingredient.

GHS Classification：

Not Classified

Toxicity

Natural Pollution Sources：

L-Alanine, a nonessential amino acid, is produced within living organisms(1). Dietary intake of L-alanine is not essential for life since sufficient quantities are produced within the human body(1).

Pollution Sources：

L-Alanine's production and use in microbiological and biochemical research and as a dietary supplement(1) may result in its release to the environment through various waste streams(SRC).

Environmental Fate：

TERRESTRIAL FATE: Based on a classification scheme(1), Koc values ranging from 31.7-65(2), indicate that L-alanine is expected to have very high to high mobility in soil(SRC). Measured pKa values of 2.34 (carboxylic acid) and 9.69 (primary amine)(3), indicate that this compound will exist as a zwitterion in the environment. Volatilization of L-alanine from moist soil surfaces is not expected to be an important fate process(SRC) since ionic compounds do not volatilize. L-Alanine is not expected to volatilize from dry soil surfaces(SRC) based upon an estimated vapor pressure of 1.1X10-7 mm Hg at 25 °C(SRC), determined from a fragment constant method(4). L-Alanine is expected to biodegrade in soil based on 61-81% loss of C-14 labeled carbon as CO2 from loam and sandy loam soil after 1 week(5).|AQUATIC FATE: Based on a classification scheme(1), measured Koc values ranging from 31.7-65(2), indicate that L-alanine is not expected to adsorb to suspended solids and sediment(SRC). Measured pKa values of 2.34 (carboxylic acid) and 9.69 (primary amine)(3), indicate that this compound will exist as a zwitterion in the environment. Volatilization of L-alanine from water surfaces is not expected to be an important fate process(SRC) since ionic compounds do not volatilize. According to a classification scheme(4), a BCF of 0.004(SRC), from its log Kow of -2.85(5) and a regression-derived equation(6), suggests the potential for bioconcentration in aquatic organisms is low(SRC). L-Alanine is expected to biodegrade in water based on 96% degradation after 23 days measured in a screening test using an activated sludge inoculum(7).|ATMOSPHERIC FATE: According to a model of gas/particle partitioning of semivolatile organic compounds in the atmosphere(1), L-alanine, which has an estimated vapor pressure of 1.1X10-7 mm Hg at 25 °C(SRC), determined from a fragment constant method(2), is expected to exist in both the vapor and particulate phases in the ambient atmosphere. Vapor-phase L-alanine is degraded in the atmosphere by reaction with photochemically-produced hydroxyl radicals(SRC); the half-life for this reaction in air is estimated to be 11 hours(SRC), calculated from its rate constant of 3.5X10-11 cu cm/molecule-sec at 25 °C(SRC) that was derived using a structure estimation method(3). Particulate-phase L-alanine may be removed from the air by wet or dry deposition(SRC). L-Alanine does not contain chromophores that absorb at wavelengths >290 nm and therefore is not expected to be susceptible to direct photolysis by sunlight(4).

Abiotic Degradation：

The rate constant for the vapor-phase reaction of L-alanine with photochemically-produced hydroxyl radicals has been estimated as 3.5X10-11 cu cm/molecule-sec at 25 °C(SRC) using a structure estimation method(1). This corresponds to an atmospheric half-life of about 11 hours at an atmospheric concentration of 5X10+5 hydroxyl radicals per cu cm(1). L-Alanine is not expected to undergo hydrolysis in the environment due to the lack of functional groups that hydrolyze under environmental conditions(2). L-Alanine does not contain chromophores that absorb at wavelengths >290 nm and therefore is not expected to be susceptible to direct photolysis by sunlight(2).

Bioconcentration：

An estimated BCF of 0.004 in fish was calculated for L-alanine(SRC), using an estimated log Kow of -2.85(1) and a regression-derived equation(2). According to a classification scheme(3), this BCF suggests the potential for bioconcentration in aquatic organisms is low(SRC).

Mobility：

Koc values of 35.7 and 31.7-65 have been measured for alanine in surface sediment(1). According to a classification scheme(2), these Koc values suggest that L-alanine is expected to have very high to high mobility in soil. Measured pKa values of 2.34 (carboxylic acid) and 9.69 (primary amine)(3), indicate that this compound will exist as a zwitterion in the environment.

Volatilization：

Measured pKa values of 2.34 (carboxylic acid) and 9.69 (primary amine)(1), indicate that this compound will exist as a zwitterion in the environment. Volatilization of L-alanine from moist soil or water surfaces is not expected to be an important fate process(SRC) since ionic compounds do not volatilize. L-Alanine is not expected to volatilize from dry soil surfaces(SRC) based upon a an estimated vapor pressure of 1.1X10-7 mm Hg(SRC), determined from a fragment constant method(2).

Water Concentrations：

SURFACE WATER: The concentrations of alanine measured at different locations in the estuary of the Tama River in Japan ranged from 0.73-1.50 umol/L(1).|RAIN/SNOW/FOG: Alanine was detected in 40 out of 73 rain samples collected in the rural, continental town of Charlottesville, VA(1). The mean, median, and range of alanine concentrations were 59, 18, and 2-960 nM, respectively(1).

Human Exposure：

NIOSH (NOES Survey 1981-1983) has statistically estimated that 18,364 workers (14,698 of these are female) are potentially exposed to L-alanine in the US(1). Occupational exposure to L-alanine may occur through dermal contact with this compound at workplaces where L-alanine is produced or used(SRC). Monitoring data indicate that the general population may be exposed to L-alanine via ingestion of food, ingestion of this substance as a dietary supplement, and dermal contact with this compound and other consumer products containing L-alanine(SRC).

Drug Information

Drug Indication：

Used for protein synthesis.|Treatment of Multiple Myeloma|Parenteral nutrition|Supplementation of amino-acids where parenteral nutrition is required.

Therapeutic Uses：

Exptl Ther: ... Therapy of acute water diarrhea is reported in 94 male patients, aged 6-59 yr, of whom 49 were given a standard dextrose (glucose) based formula, to a total dose of 105-1719 ml/kg, and 45 were given the same soln with added alanine 90 uM/l, to a total dose of 60-1035 ml/kg. All patients were also given iv injections of replacement soln and oral tetracycline. The median stool output/kg body weight during the initial 24 hr of treatment until diarrhea stopped was reduced in those given the soln containing alanine as compared to controls. Intake of oral rehydration soln was reduced in those given alanine. Two patients given alanine soln and 18 given the standard treatment required unscheduled rapid iv replacement soln to correct signs of dehydration during oral therapy.|DIETARY SUPPLEMENT|Used in pharmaceutical preparations for injection or infusion; dietary supplement and flavor compounds in maillard reaction products; stimulant of glucagon secretion

Pharmacology：

Is an important source of energy for muscle tissue, the brain and central nervous system; strengthens the immune system by producing antibodies; helps in the metabolism of sugars and organic acids.

Mechanism of Action：

L-Alanine is a non-essential amino acid that occurs in high levels in its free state in plasma. It is produced from pyruvate by transamination. It is involved in sugar and acid metabolism, increases immunity, and provides energy for muscle tissue, brain, and the central nervous system. BCAAs are used as a source of energy for muscle cells. During prolonged exercise, BCAAs are released from skeletal muscles and their carbon backbones are used as fuel, while their nitrogen portion is used to form another amino acid, Alanine. Alanine is then converted to Glucose by the liver. This form of energy production is called the Alanine-Glucose cycle, and it plays a major role in maintaining the body's blood sugar balance.

Human Toxicity Excerpts：

/ALTERNATIVE and IN VITRO TESTS/ The amino acid L-alanine has been shown to exert long-term cytoprotection by as yet unidentified molecular mechanisms. Using cultured human endothelial cells (ECV 304), the present study investigates the effect of L-alanine on hydrogen peroxide-mediated cytotoxicity and expression of the antioxidant stress proteins, heme oxygenase-1 (HO-1) and ferritin. Pretreatment with L-alanine (0.3-3mM) protected endothelial cells from hydrogen peroxide-dependent cytotoxicity and increased the surviving endothelial cell fraction by 76%. The described protection was associated with a significant induction of heme oxygenase activity and ferritin protein synthesis. A protective effect similar to L-alanine was observed when preincubating the cells with iron-free apoferritin or the antioxidant HO-1 product, bilirubin. The present study demonstrates that L-alanine stimulates expression of the antioxidant defense proteins HO-1 and ferritin in endothelial cells. Increased heme oxygenase activity and ferritin expression improve endothelial dysfunction suggesting an antiatherogenic potential of L-alanine.|/OTHER TOXICITY INFORMATION/ The response to a primed constant infusion of alanine 2 mg/kg/min on glucose and urea kinetics in 4 healthy overnight fasted subjects was /studied/ by use of concurrent primed infusions of 6,6-d2-glucose and radiolabeled urea. When no alanine was infused, plateaus in glucose and urea concn and enrichment were maintained for the final 3 hr of 4 hr infusion of tracers. When alanine was infused over the final 2 hr of a second protocol, urea enrichment decr significantly, indicating an incr in urea production corresponding to a potential incr in glucogenesis from alanine of 20%. The alanine infusion had no effect on either the plasma concn or enrichment of glucose, suggesting hepatic glucose output was not affected.

MeSH Entry Terms：

Abufène

L-Alanine Use and Manufacturing

Methods of Manufacturing

Method 1. Enzymatic method applies enzyme engineering technology, takes L-aspartic acid as raw material, and produces L-alanine under the action of β-deacidase of Pseudomonas de Aquinha. Process: L-aspartic acid Acid [immobilized aspartate β-decarboxylase (decarboxylation)]→[37℃, pH6.0] decarboxylation [concentration, crystallization]→[pressure reduction, 5℃] crystallization [refined]→[5℃] L- Cultivation of crude alanine strains of Pseudomenas daconhae (Pseudomenas daconhae) 68 different strains, using slant medium, composed of peptone 0.25%, beef extract 0.52%, yeast extract 0.25%, NaCl 0.5% , pH7.0, 2.0% agar. The seed medium is the same as the slant medium, but without the addition of agar, the medium volume in a 250mL Erlenmeyer flask is 40mL. The composition of the shake flask medium is 3.0% guine acid, 0.9% peptone, 0.5% casein hydrolysate, and phosphoric acid Potassium dihydrogen 0.05%, MgSO4.7H2O 0.01%, adjust the pH to 7.2 with ammonia water, the medium volume in the 500ml Erlenmeyer flask is 80ml, inoculate the fresh slant strains cultured for 24h in the seed medium, shake culture at 30℃ 8h, then inoculate it in a shake flask culture medium, shake culture at 30°C for 24h, and then gradually expand to culture in a culture tank of 1000-2000ml. After the cultivation, the pH was adjusted to 4.75 with 1mol/L HCl, and the temperature was incubated at 30°C for 1 hour. Centrifuge with a rotating drum centrifuge to collect the bacterial cells (containing L-aspartate-β-decarboxylase). Cell fixation Take 20kg of the above wet bacteria, add physiological saline and stir evenly and dilute to 40L. Take another 85L of 50g/L (5%) carrageenan solution dissolved in physiological saline, keep the two liquids at 45℃ and mix, cool to 5℃ to form a gel, immerse it in 600L containing 20g/L (2%) KCl and 0.2mol/L hexamethylenediamine 0.5mol/L, pH7.0 phosphate buffer, stir for 10min at 5℃, add glutaraldehyde to 0.6 mol/L, stir at 5℃ for 30min, remove and cut into 3-5mm3 After the block is fully washed with 20 g/L KCl solution, it is obtained by filtering off the washing liquid and set aside. Preparation of bioreactor The immobilized Pseudomonas is loaded into a packed bed reactor (30 cm×180 cm) with a pressure of 1.515×107 Pa, and it is ready for use. For decarboxylation, take the 37℃ L-aspartic acid solution (1mol/L), add pyridoxal phosphate to a concentration of 0.1 mmol/L, adjust the pH 6.0, adjust the pH 6.0, keep 37℃, and flow into a fixed space at a certain space Pseudomonas bioreactor for decarboxylation to control the maximum conversion rate (>95%), and collect the decarboxylation solution to obtain crude L-alanine solution. Refine the clear decarboxylation solution, concentrate it under reduced pressure at 60-70°C to half of its original volume, add an equal volume of methanol after cooling, crystallize at 5°C, let stand overnight, filter the crystals, wash with a small amount of cold methanol, drain, and 80°C Dry in vacuum to obtain crude L-alanine. Then add the crude product to 3 times volume of deionized water, stir to dissolve at 80℃, add 5 g/L (0.5%) activated carbon, stir for 1h at 70℃, filter to take the filtrate, cool, add equal volume of methanol, crystallize at 5℃, filter After taking the crystals and vacuum drying at 80°C, the fine L-alanine is obtained. Method 2. The immobilized enzyme uses fumaric acid as a raw material, first converts it with NH3 into L-aspartic acid under the action of aspartic acid, and then fixes the β-aspartic acid of Pseudomonas de Acunha in the same way as the above enzymatic method. -Decarboxylase under the action of decarboxylase to obtain L-alanine. Process: Fumaric acid [immobilized aspartase (conversion)]→[37℃, pH8.5] conversion solution [immobilized aspartate-β-decarboxylase]→[37℃, pH6.0] decarboxylation Liquid [concentration, crystallization]→[decompression, 5℃] crystallization [refining]→[5℃] L-alanine aspartase immobilized cell seed cultivation, immobilization, preparation of bioreactors. See the aspartase conversion process for details. For decarboxylation of immobilized aspartate-β-decarboxylase, refer to the above-mentioned enzymatic process for purification. Method three, chemical synthesis method Strecker method Bucherer method and then optical resolution to obtain L-alanine fine product.

Uses

This product is used to make vitamin B6, synthetic calcium pantothenate and other organic compounds. Adding to food can enhance the flavoring effect of chemical seasonings, improve the taste of sweeteners and the sour taste of organic acids, improve the quality of alcoholic beverages, prevent the oxidation of oils and improve the flavor of impregnated foods. It can also be used as a biochemical reagent for biochemical and microbiological research.

Intermediates

Production

World market for L-alanine in 1982: 130 tonnes; World market for DL-alanine in 1982: 2000 tonnes, in 1984: 700 tonnes|Production volumes for non-confidential chemicals reported under the Inventory Update Rule. [Table#3590]

Formulations：

GRADES: REAGENT; TECHNICAL.|Reagent grade; USP and FCC grades

Manufacturing Info：

All other chemical product and preparation manufacturing|L-Alanine: ACTIVE|Alanine is used for meat and poultry Maillard flavors. It is used to a lesser extent for chocolate, cocoa, cream, butter, and tobacco Maillard flavors.|AN AMINO ACID CLASSIFIED AS NON-ESSENTIAL FOR THE MAINTENANCE OF GROWTH IN RATS.

Analytic Methods：

MICROBIOLOGICAL ASSAY METHODS.|AMINO ACID ANALYZER & GLC DETERMINATION.|AOAC method 960.47, Amino Acids in Vitamin Preparations; microbiological method using basal media. /Amino acids/|The following methods have been developed for the analysis of free amino acids in blood, food, and feedstocks: (1) Protein hydrolysis, (2) Chromatographic methods that include high performance liquid chromatography (HPLC), gas chromatography (GC) and thin-layer chromatography (TLC), (3) Colorimetric and Fluorimetric Analysis, (4) Spectrometric Analysis, and (5) Enzymatic Determination and Microbial Assay. /Amino acids/|For more Analytic Laboratory Methods (Complete) data for (L)-ALANINE (15 total), please visit the HSDB record page.

Laboratory Methods：

L-ALANINE DETERMINATION /IN LIVER TISSUE EXTRACTS/ WITH ALANINE DEHYDROGENASE & UV SPECTROPHOTOMETRY.

Use Classification：

Food additives -> Flavoring Agents|Human Drugs -> EU pediatric investigation plans|Cosmetics -> Antistatic

Food Additive Classes：

Flavoring Agents

Computed Properties

Molecular Weight:89.09
XLogP3:-3
Hydrogen Bond Donor Count:2
Hydrogen Bond Acceptor Count:3
Rotatable Bond Count:1
Exact Mass:89.047678466
Monoisotopic Mass:89.047678466
Topological Polar Surface Area:63.3
Heavy Atom Count:6
Complexity:61.8
Defined Atom Stereocenter Count:1
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

Material

Benzylamine

Cyclohexylamine

Fumaric acid

Glucose

Glycine

Formic acid

Activated charcoal

Methanol

Acetonitrile

Monopotassium phosphate

Propionic acid

Downstream Products

Hydroquinone

Carbon dioxide

p-Toluenesulfonamide

Acetaldehyde

Ammonia

Drug Function and Efficacy

Promotes normal protein metabolism in the human body, corrects negative nitrogen balance, supplements protein, and accelerates wound healing; essential for amino acid metabolism in trauma patients (high content of alanine and proline)

This ingredient has been used in drugs with the following functions (note: it does not mean that the ingredient itself has the following health functions)

Related Drugs

Compound Amino Acid Injection (17AA)
Ingredients	This product is a compound preparation, a sterile aqueous solution made of 17 kinds of amino acids and sorbitol. Its components are: 1000ml contains: L-isoleucine (C6H13NO2) 2.10g L-histidine (C6H9N3O2) 1.75g L-leucine (C6H13NO2) 2.85g L-alanine (C3H7NO2) 13.00g L-lysine acetate (C6H14N2O2·C2H4O2) 4.75g glycine (
Indication	Not yet clear.
Specifications	250ml:19.133g (total amino acids)
Manufacturer	JiangSu ChiaTai FengHai Pharmaceutical Co., Ltd.

Compound Amino Acid Injection (17AA)
Ingredients	This product is a compound preparation, a sterile aqueous solution made of 17 kinds of amino acids and sorbitol. Its components are: 1000ml contains: L-isoleucine (C6H13NO2) 2.10g L-histidine (C6H9N3O2) 1.75g L-leucine (C6H13NO2) 2.85g L-alanine (C3H7NO2) 13.00g L-lysine acetate (C6H14N2O2·C2H4O2) 4.75g glycine (
Indication	Not yet clear.
Specifications	250ml:19.133g (total amino acids)
Manufacturer	Fuzhou FU Yao Pharmaceutical Co., Ltd.

Compound Amino Acid Injection (17AA)
Ingredients	This product is a compound preparation, a sterile aqueous solution made of 17 kinds of amino acids and sorbitol. Its components are: 1000ml contains: L-isoleucine (C6H13NO2) 2.10g L-histidine (C6H9N3O2) 1.75g L-leucine (C6H13NO2) 2.85g L-alanine (C3H7NO2) 13.00g L-lysine acetate (C6H14N2O2·C2H4O2) 4.75g glycine (
Indication	Not yet clear.
Specifications	250ml:19.133g (total amino acids)
Manufacturer	Qingdao Shouhejinhai Pharmaceutical Ltd.

See More Related Drugs

Registered Holders

AJINOMOTO HEALTH AND NUTRITION NORTH AMERICA INC

United States
Active
AMINO GmbH

Germany
Active
SHIJIAZHUANG JIRONG PHARMACEUTICAL CO LTD

United States
Active

See More Registered Holders

Recommended Suppliers of L-Alanine

SHANDONG LOOK CHEMICAL CO.,LTD Contact Supplier

CN
5 YRS

Business licensed Certified factory

Manufactory Supplier of Agrochemicals,Daily Chemicals,Catalysts & Chemical Auxiliary Agents,Extract,Inorganic Chemicals,Organic Intermediate,Pigment & Dyestuff,Polymer,Flavour & Fragrance,Basic Organic Chemicals,Pharmaceutical

High Quality Amino Acid L-Alanine Powder CAS 56-41-7

CAS No.: 56-41-7

Content: 99.00%

Inquiry
Dingwang Technology (Wuhan) Co., Ltd. Contact Supplier

CN
5 YRS

Business licensed

Trader Supplier of API,nutrition supplements,plant extract,peptide,HCG

amino acid L-Alanine 98% L Alanine Powder 56-41-7 Senwayer

CAS No.: 56-41-7

Grade: Top Product

Content: 98%

Inquiry
Hebei Chuncheng Biological Technology Co.,LTD Contact Supplier

CN
9 YRS

Business licensed Certified factory

Manufactory Supplier of Alanine

Alanine 98.50%

CAS No.: 56-41-7

Grade: Food Grade

Content: 98.5%

Inquiry
Wuzhi Friend Food Technology Co., Ltd. Contact Supplier

CN
5 YRS

Business licensed Certified factory

Manufactory Supplier of Food Additives,Tablet Candy,Solid Drink,Roasted Grain Powde,Vitamin C Tablet

Food grade CAS 56-41-7 L-Alanine

CAS No.: 56-41-7

Grade: Food Grade

Content: 99%

Inquiry
Henan Lihao Chem Plant Limited Contact Supplier

CN
5 YRS

Business licensed

Trader Supplier of PVC resin,pvc paste resin,melamine

L-Alanine 99% white powder kanbei

CAS No.: 56-41-7

Grade: Industrial Grade

Content: 99%

Inquiry

Learn More Other Chemicals

L-Alanine tert-butyl ester hydrochloride

13404-22-3
2,3-Dihydroxy-2-butenyl (6R,7R)-7-((R)-mandelamido)-3-(((5-methyl-1,3,4-thiadiazol-2-yl)thio)methyl)-8-oxo-5-thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylate, cyclic 2,3-carbonate, ester with L-alanine

97275-40-6
L-Glutamic acid, polymer with L-alanine and L-lysine

27456-63-9
L-ALANINE (D7) Formula

74280-71-0
L-Alanine homopolymer Formula

25191-17-7
L-Alanine 1,1-dimethylethyl ester Formula

21691-50-9
L-Alanine isopropyl ester hydrochloride Structure

39825-33-7
L-Alanine isopropyl ester hydrochloride Structure

62062-65-1
What is L-Alanine methyl ester

10065-72-2
What is L-Lysine, polymer with L-alanine

26701-37-1