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China Largest factory Manufacturer Supply High Quality L-Methionine CAS 63-68-3

Name: China Largest factory Manufacturer Supply High Quality L-Methionine CAS 63-68-3
Brand: Leader
SKU: pr23112765780
Price: 10 USD
Availability: InStock

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CAS No.:

63-68-3

Grade:

Food Grade

Content:

99.9%

Port:

China port

Brand:

Leader

Packaging:

25KG/Drum

Sample Available:

Yes

Price valid (until):

2023-12-27

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LEADER BIOCHEMICAL GROUP

Company Type:

Manufactory

Location:

China

Payment Terms:

TT against copy of documents,D/P,L/C,D/A,O/A,TT against B/L draft before shipment,100% TT in advance

Average Lead Time:

5 days

Qualification:

Main Products:

Biochemicals Ingredients,Vitamin Amino Acid Ingredients,Cosmestic Ingredients,Pharma Chemicals,Organic Fine Chemicals,Food Nutrient Ingredients

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Product Details
Seller Information
Inquiry History

Description

About Product Technical Details

Product Name:	L-Methionine
Synonyms:	L-Met-OH;L-Methionine, Animal-Free;L-METHIONINE (13C5,D8,15N);L-METHIONINE (1,2,3,4-13C4;METHYL-13CH3);L-METHIONINE, REAGENT GRADE, >=98% (;L-MethionineUSP, 98.5-101.5% (Titration: anhydrous basis);L(-)-Methionin
CAS:	63-68-3
MF:	C5H11NO2S
MW:	149.21
EINECS:	200-562-9
Product Categories:	amino;Miscellaneous Compounds;Amino Acids;Amino Acids & Derivatives;Sulfur & Selenium Compounds;fertilizer;Amino Acids;Amino Acid Derivatives;Methionine [Met, M];Amino Acids and Derivatives;Chiral Compound;bc0001;63-68-3
Mol File:	63-68-3.mol

L-Methionine Chemical Properties

Melting point	284 °C (dec.)(lit.)
alpha	23.25 º (c=2, 6N HCl)
Boiling point	393.91°C (estimate)
density	1,34g/cm
refractive index	1.5216 (estimate)
storage temp.	20-25°C
solubility	1 M HCl: 0.5 M at 20 °C, clear, colorless
form	Solid
pka	2.13(at 25℃)
color	White
PH	5-7 (10g/l, H2O, 20℃)
Odor	Slight characteristic
optical activity	[α]20/D +23.7±0.5°, c = 5% in 5 M HCl
Water Solubility	Soluble
λmax	λ: 260 nm Amax: 0.40 λ: 280 nm Amax: 0.05
Merck	14,5975
BRN	1722294
Stability:	Stable. Incompatible with strong oxidizing agents.
LogP	0.217 (est)

Product Pictures

About Our Group

Since 1996 when our factory was put into production to year of 2020, our group has successively invested in more than 52 factories with shares and subordinates.We focus on manufacture high quality raw materials and refined ingredients which is widely used at different industries areas like Pharm & chemicals industry, functional active ingredients industry, nutritional Ingredients industry, health care products industry, cosmetics industry, pharmaceutical and refined food, feed, oil industry, natural plant ingredients industries, agriculture industry etcs to provide top quality of GMP standards products.

All the invested factories' product lines cover API and intermediates, vitamins, amino acids, plant extracts, daily chemical products, cosmetics raw materials, nutrition and health care products, food additives, feed additives, essential oil products, fine chemical products and agricultural chemical raw materials And flavors and fragrances. Especially in the field of vitamins, amino acids, pharmaceutical raw materials and cosmetic raw materials, agriculture raw materials, we have more than 20 years of production and sales experience. All products meet the requirements of high international export standards and have been recognized by customers all over the world. Our manufacture basement & R&D center located in National Aerospace Economic & Technical Development Zone Xi`an Shaanxi China.

Now not only relying on self-cultivation and development as well as maintains good cooperative relations with many famous research institutes and universities in China. Now, we have closely cooperation with Shanghai Institute of Organic Chemistry of Chinese Academy of Science, Beijing Institute of Material Medical of Chinese Academy of Medical Science, China Pharmaceutical University, Zhejiang University. Closely cooperation with them not only integrating Science and technology resources, but also increasing the R&D speed and improving our R&D power. Offering Powerful Tech supporting Platform for group development. Keep serve the manufacture and the market as the R&D central task, focus on the technical research. Now there are 3 technology R & D platforms including biological extract, microorganism fermentation and chemical synthesis, and can independently research and develop kinds of difficult APIs and pharmaceutical intermediates.

With the strong support of China State Institute of Pharmaceutical Industry (hereinafter short for CSIPI), earlier known as Shanghai Institute of Pharmaceutical Industry (SIPI), we have unique advantages in the R & D and industrialization of high-grade, precision and advanced products. Now our Group technical force is abundant, existing staff more that 1000 people, senior professional and technical staff accounted for more than 50% of the total number of employees, including 15 PhD research and development personnel, 5 master′ S degree in technical and management personnel 9 people.

We have advanced equipment like fermentation equipment and technology also extraction, isolation, purification, synthesis with rich production experience and strict quality control system, According to the GMP required, quickly transforming the R&D results to industrial production in time, it is our advantages and our products are exported to North and South America, Europe, Middle East, Africa, and other five continents and scale the forefront in the nation, won good international reputation.

We believe only good quality can bring good cooperation, quality is our key spirit during our production, we are warmly welcome clients and partner from all over the world contact us for everlasting cooperation, Leader will be your strong, sincere and reliable partner in China.

Our Factories Production Lines

Our Factories R&D ability

Our Factories warehouse 52000㎡

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ECHEMI Editorial Reference

L-Methionine is the L-isomer of Methionine, an essential amino acid for human development. Methionine acts as a hepatoprotectant.
Minute hexagonal plates from dilute alcohol. (NTP, 1992)|Solid
Minute hexagonal plates from dilute alcohol. (NTP, 1992)|L-methionine is the L-enantiomer of methionine. It has a role as a nutraceutical, a micronutrient, an antidote to paracetamol poisoning, a human metabolite and a mouse metabolite. It is an aspartate family amino acid, a proteinogenic amino acid, a methionine and a L-alpha-amino acid. It is a conjugate base of a L-methioninium. It is a conjugate acid of a L-methioninate. It is an enantiomer of a D-methionine. It is a tautomer of a L-methionine zwitterion.|A sulfur containing essential amino acid that is important in many body functions. It is a chelating agent for heavy metals.|Methionine is one of nine essential amino acids in humans (provided by food), Methionine is required for growth and tissue repair. A sulphur-containing amino acid, methionine improves the tone and pliability of skin, hair, and strengthens nails. Involved in many detoxifying processes, sulphur provided by methionine protects cells from pollutants, slows cell aging, and is essential for absorption and bio-availability of selenium and zinc. Methionine chelates heavy metals, such as lead and mercury, aiding their excretion. It also acts as a lipotropic agent and prevents excess fat buildup in the liver. (NCI04)|A sulfur-containing essential L-amino acid that is important in many body functions.

Certificates

Basic Info

Product Name:

l-Methionine

Other Name:

L-Methionine;Methionine,L-;Cymethion;Methionine;Butanoic acid,2-amino-4-(methylthio)-,(S)-;2-Amino-4-(methylthio)butyric acid;S-Methionine;α-Amino-γ-methylmercaptobutyric acid;γ-Methylthio-α-aminobutyric acid;(S)-2-Amino-4-(methylthio)butanoic acid;l-Methionine;L-α-Amino-γ-methylthiobutyric acid;L-Homocysteine,S-methyl-;h-Met-oh;Acimethin;NSC 22946;S-Methyl-L-homocysteine;Secretory peptide (human clone HTXDU73);Methiorep;Meth-o-Tas;(2S)-2-Azaniumyl-4-methylsulfanylbutanoate;(2S)-2-Amino-4-(methylsulfanyl)butanoic acid;7005-18-7;24425-78-3;1437749-32-0;1437749-60-4;1437749-65-9;1437749-75-1;1437749-80-8;1437769-00-0;1437870-94-4;1437870-95-5;1437870-97-7;1437870-98-8;1437871-20-9;1463481-01-7;1463481-06-2;1463481-15-3;1463481-19-7;1463481-23-3;1463481-27-7;1463481-31-3;1463481-37-9;1463481-41-5;1463481-46-0;1463481-51-7;1463481-58-4;1463481-73-3;1463481-80-2;1463481-89-1;1463610-75-4;1463610-76-5;1466415-57-5

CAS No.:

63-68-3

Molecular Formula:

C5H11NO2S

InChIKeys:

InChIKey=FFEARJCKVFRZRR-BYPYZUCNSA-N

Molecular Weight:

149.21100

Exact Mass:

149.21

EC Number:

200-562-9

UNII:

AE28F7PNPL

NSC Number:

760117

DSSTox ID:

DTXSID5040548

NCI Thesaurus Code:

C29600

Color/Form:

Minute hexagonal plates from dilute alcohol|Colorless or white, lustrous plates or as white, crystalline powder

ATC Code:

V - Various

HScode:

2930400000

Categories:

Nutrition Supplements

Characteristics

PSA:

88.62000

XLogP3:

-1.9

Appearance:

Minute hexagonal plates from dilute alcohol. (NTP, 1992)

Density:

1.206 g/cm3

Melting Point:

280-282 °C (decomp)

Boiling Point:

123-126 °C @ Press: 15 Torr

Flash Point:

139.4ºC

Refractive Index:

1.531

Water Solubility:

H2O: soluble

Storage Conditions:

Store at RT.

Vapor Pressure:

8.14X10-8 mm Hg at 25 deg C (est)

Toxicity:

LD50 oral in rat: 36gm/kg

Specific rotation:

Specific optical rotation: 22.5 deg at 25 °C/D (1 N HCl)

Odor:

Faint

Taste:

Sulfurous

PH:

pH (1% aqueous solution) = 5.6-6.1

PKA:

2.28(at 25 °C)

Henrys Law Constant:

Henry's Law constant = 2.11X10-11 atm-cu m/mol at 25 °C (est)

Dissociation Constants:

2.28 (at 25 °C)|pKa = 2.28; pK2 = 9.21

Collision Cross Section:

133.65 Å² [M+H]+ [CCS Type: DT, Method: stepped-field]|152.05 Å² [M-H]- [CCS Type: DT, Method: stepped-field]|127 Å² [M+H]+ [CCS Type: TW, Method: calibrated with polyalanine]|133.1 Å² [M+H]+ [CCS Type: DT, Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]|132 Å² [M-H]- [CCS Type: DT, Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]|134.08 Å² [M+H]+ [CCS Type: DT, Method: stepped-field]|140.5 Å² [M-H]-

Experimental Properties:

Platelets from alcohol. mp 281 °C (decomposes), density 1.340; pKa1 = 2.28, pKa2 = 9.21; pH of 1% aqueous solution 5.6-6.1; Rf value 0.77. Solubility in water (g/L) at 0 °C: 18.18; at 25 °C: 33.81; at 50 °C: 60/.70; at 75 °C: 15.2 °C. Soluble in dilute acids, alkalies. Very slightly soluble in 95% alcohol. Insoluble in ether. /Methionine, DL-form/|UV: 1-65 (Organic Electronic Spectral Data, Phillips et al, John Wiley & Sons, New York) /Methionine (DL)/|Hydroxyl radical reaction rate constant = 5.13X10-11 cu cm/molec-sec at 25 °C (est)

Air and Water Reactions:

Reacts with water, steam, and/or acids to produce toxic and flammable vapors of hydrogen sulfide (NTP, 1992). Water soluble (NTP, 1992). pH of 1% aqueous solution is 5.6-6.0.

Reactive Group:

Sulfides, Organic

Reactivity Profile:

An organosulfide and amine derivative, carboxylic acid. Look at Reactive Groups 20 (organosulfides), 7 (amines), and 3 (carboxylic acids) may give indications about reactive tendencies. It is an amino acid essential in human nutrition.

See More l-Methionine Properties 

Hazard Identification

Classification of the substance or mixture

Not classified.

GHS label elements, including precautionary statements

Precautionary statement(s)
Pictogram(s)	No symbol.
Signal word	No signal word
Hazard statement(s)	none
Prevention	none
Response	none
Storage	none
Disposal	none

Other hazards which do not result in classification

no data available

Handling and Storage

Precautions for safe handling

Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

Conditions for safe storage, including any incompatibilities

Separated from strong oxidants. Well closed.

See More l-Methionine Safety Data Sheet 

Seller Information

Business Type:
Manufactory

Main Products:
Biochemicals Ingredients,Vitamin Amino Acid Ingredients,Cosmestic Ingredients,Pharma Chemicals,Organic Fine Chemicals,Food Nutrient Ingredients

Location:
National Aerospace Economic & Technical Development Zone,Chang'an,Xi'an,China

Payment Terms:
TT against copy of documents,D/P,L/C,D/A,O/A,TT against B/L draft before shipment,100% TT in advance

Average lead Time:
5 days

Total Annual Revenue:
$10 million-$25 million

Total Employees:
Above 1000

Year of Establishment:
2014

Company Certificates
- Level A of Tax Credit Registration Assessment by Government
- Good Product Quality Management Certificate of Shanxi Province,China
- Company Trade Union Qualification Certificate
- Excellent Group Enterprise of Quality and credit in Shaanxi ProvinceChina
- AAA TOP Credit Excellent Group Enterprise of Shanxi Province,China
- FDA
24 Hours Team Service
Email
info@leader-biogroup.com
Hot Line
+86-029-68895030
+86-029-68569961
+86-029-68569962
Fax
+86-029-68895030

Leader Biochemical Group is a large leader incorporated industry manufacturers and suppliers of advanced refined raw materials From the year of 1996 when our factory was put into production to year of 2020, our group has successively invested in more than 52 factories Base with shares and subordinates.We focus on manufacture Pharm & chemicals, functional active ingredients, nutritional Ingredients, health care products, cosmetics, pharmaceutical and refined feed, oil, natural plant ingredients industries to provide top quality of GMP standards products.All the invested factories' product lines cover API and intermediates, vitamins, amino acids, plant extracts, daily chemical products, cosmetics raw materials, nutrition and health care products, food additives, feed additives, essential oil products, fine chemical products and agricultural chemical raw materials And flavors and fragrances. Especially in the field of vitamins, amino acids, pharmaceutical raw materials and cosmetic raw materials, we have more than 20 years of production and sales experience. All products meet the requirements of high international export standards and have been recognized by customers all over the world.
- Our manufacture basement & R&D center located in National Aerospace Economic & Technical Development Zone Xi`an Shaanxi China. Now not only relying on self-cultivation and development as well as maintains good cooperative relations with many famous research institutes and universities in China. Now, we have closely cooperation with Shanghai Institute of Organic Chemistry of Chinese Academy of Science, Beijing Institute of Material Medical of Chinese Academy of Medical Science, China Pharmaceutical University, Zhejiang University. Closely cooperation with them not only integrating Science and technology resources, but also increasing the R&D speed and improving our R&D power. Offering Powerful Tech supporting Platform for group development. Keep serve the manufacture and the market as the R&D central task, focus on the technical research.
  
  Now there are 3 technology R & D platforms including biological extract, microorganism fermentation and chemical synthesis, and can independently research and develop kinds of difficult APIs and pharmaceutical intermediates. With the strong support of China State Institute of Pharmaceutical Industry (hereinafter short for CSIPI), earlier known as Shanghai Institute of Pharmaceutical Industry (SIPI), we have unique advantages in the R & D and industrialization of high-grade, precision and advanced products.
  
  Now our Group technical force is abundant, existing staff more that 1000 people, senior professional and technical staff accounted for more than 50% of the total number of employees, including 15 PhD research and development personnel, 5 master′ S degree in technical and management personnel 9 people. We have advanced equipment like fermentation equipment and technology also extraction, isolation, purification, synthesis with rich production experience and strict quality control system, According to the GMP required, quickly transforming the R&D results to industrial production in time, it is our advantages and our products are exported to North and South America, Europe, Middle East, Africa, and other five continents and scale the forefront in the nation, won good international reputation.
  
  We believe only good quality can bring good cooperation, quality is our key spirit during our production, we are warmly welcome clients and partner from all over the world contact us for everlasting cooperation, Leader will be your strong, sincere and reliable partner in China.
- Process Capability : It has more than 100 sets of multi-functional reaction reactors, such as 100l~6300l enamel, stainless steel, Hastelloy, etc. It can realize Grignard, coupling, bromination, Wittig reaction and other conventional reactions. There are microchannel reactor workshops, which can realize continuous production, energy conservation and emission reduction. It can realize high pressure, high vacuum rectification, ultra-low temperature (-80 ℃ ~-100 ℃), ultra-high temperature (300 ℃ ~400 ℃) and other special reactions. It can realize the customization and processing of customers' products.
Factory Overview

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GROUP HONOR
Honor Name: Level A of Tax Credit Registration Assessment
Issued By:National Administration of Taxation & Shaanxi Tax Bureau
Authorised Date:2018-09-16
Description: National Administration of Taxation & Shaanxi Tax Bureau

Honor Name: AAA TOP Credit Excellent Group Enterprise of Shanxi Province,China
Issued By:China Association of Shaanxi product Quality management Center
Authorised Date:2018-12-31
Description:AAA TOP Credit Excellent Group Enterprise of Shanxi Province,China

Honor Name:Excellent Group Enterprise of Quality and credit in Shaanxi ProvinceChina
Issued By: China Association of Shaanxi product Quality management Center
Authorised Date:2018-12-31
Description: Excellent Group Enterprise of Quality and Integrity in Shaanxi Province,China

Honor Name: Products Patent Certificates

Inquiry History

36 Inquiries

Country	Product	Purchase Quantity	Date Posted
India	L-Methionine	300.00 KG	Sep 4, 2026
India	L-Methionine	1.00 KG	Aug 21, 2026
India	L-Methionine	500.00 KG	Aug 4, 2026
Malaysia	L-Methionine	20.00 MT	Jun 16, 2026
India	L-Methionine	100 G	May 28, 2026
India	Methionine	1.00 20' Fcl	May 25, 2026
India	L-Methionine	1.00 20' Fcl	Apr 27, 2026
India	L-Methionine	1 KG	Apr 7, 2026
India	L-Methionine	5000 KG	Apr 5, 2026
Malaysia	L-Methionine	20.00 MT	Apr 1, 2026
Bangladesh	Butyl Acetate	1.00 KG	Nov 11, 2025
India	L-Methionine	1.00 KG	Nov 10, 2025
India	L-Methionine	200.00 KG	Nov 10, 2025
Greece	METHIONINE	300 KG	Sep 24, 2025
Belgium	DL-Methionine	4 40' Fcl	Sep 18, 2025
Algeria	methionine	1 KG	Jul 23, 2025
India	L-Methionine	5.00 MT	Jul 17, 2025
India	L-Methionine	5.00 MT	Jul 16, 2025
India	L-Methionine	10.00 TON	Jul 9, 2025
India	L-Methionine	7.00 KG	Jul 9, 2025

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China Largest factory Manufacturer Supply High Quality L-Methionine CAS 63-68-3

Product Details

Seller Information

Inquiry History

Classification of the substance or mixture

GHS label elements, including precautionary statements

Other hazards which do not result in classification

Precautions for safe handling

Conditions for safe storage, including any incompatibilities

Factory Logistics Departments

GROUP HONOR

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Email	info@leader-biogroup.com
Hot Line	+86-029-68895030
	+86-029-68569961
	+86-029-68569962
Fax	+86-029-68895030