 Home > Biochemical Engineering > Amino Acids and Proteins > l-Methionine for Sale > L - Methionine

L - Methionine

Name: L - Methionine
Brand: East Chemsources
SKU: pr2411261274
Price: 2 USD
Availability: InStock

34 Inquiries

Unit Price: Get Latest Price 

CAS No.:

63-68-3

Grade:

Pharmaceutical grade / Food grade

Content:

99%

Brand:

East Chemsources

Packaging:

25kg/Cardboard Drum

Price valid (until):

2024-12-22

Contact Supplier

 Chat Now

QINGDAO EAST CHEMSOURCES TRADE CO.,LTD

Company Type:

Trader

Location:

China

Qualification:

Main Products:

Food additives,Pharmaceutical raw materials,Chemicals,Comestic raw materials

 Visit Store

Product Description
Seller Information
Inquiry History

Description

Product Detail

Basic Information
- Chemical Name: L - Methionine; (2S) - 2 - Amino - 4 - (methylthio) bu tanoic acid.
- CAS Number: 63 - 68 - 3.
- Molecular Formula: C5H11NO2S .
- Molecular Weight: 149.21.
Physical and Chemical Properties
- Appearance: White to off - white crystalline powder.
- Melting Point: 280 - 281 °C (with decomposition).
- Solubility: Slightly soluble in water, about 3.3 g/100 mL at 25 °C. Soluble in dilute acids and alkalis. Insoluble in e thanol and e ther.
- Specific Rotation: [α]D20 = +23.2° to +24.2° (c = 5, in 1 N HCl).
Quality Specifications
- Purity: Assay (titration, dry basis) is typically 98.5% - 101.0%.
- Loss on Drying: Max. 0.5%.
- Residue on Ignition: Max. 0.1%.
- Heavy Metals: Max. 10 ppm.
- Arsenic: Max. 2 ppm.
- Ammonium: Max. 0.02%.
- Related Substances: Each individual impurity: Max. 0.2%. Total impurities: Max. 0.5%.
Uses
- Feed Industry: It is an important amino acid additive in animal feed, used to improve the growth performance and feed efficiency of livestock and poultry.
- Pharmaceutical Industry: It is used in the synthesis of various drugs and as a supplement for nutritional therapy.
- Cosmetics Industry: It can be used in some cosmetic formulations for its moisturizing and antioxidant properties.
Storage and Handling
- Storage: Store in a cool, dry place. Keep the container tightly closed to prevent moisture absorption and contamination. Protect from light.
- Handling: Wear appropriate protective equipment, such as gloves and safety glasses, to avoid contact with skin and eyes. In case of contact, rinse immediately with plenty of water. Avoid inhalation of dust.
Safety Information
- Hazard Statements: May cause skin and eye irritation. Inhalation of dust may cause respiratory irritation.
- Precautionary Statements: Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Provide good ventilation in the storage and handling area. In case of accidental ingestion, seek medical attention immediately.

Company Introduction: East Chemsources Limited was established in 2008, is a professional company engaged in the development of chemical products. In the past of 15 years，through continuous technological innovation and the use of talent introduction advantages, we have achieved rapid development, and has become an international diversified modern chemical enterprise. At present, our products have been exported to more than 80 countries,including food additives, medical raw materials, chemical products and personal care.

Since the establishment of the company, always adhere to the credibility first, quality first enterprise creed. Our company is committed to creating a customer-centric, customer-demand-oriented, customer value creation and achievement of customer dreams for the purpose of the service concept, with a broad vision and broad mind, committed to creating good benefits and market operation, to build corporate brand.

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:

Amino Acids and Proteins

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:
Trader

Main Products:
Food additives,Pharmaceutical raw materials,Chemicals,Comestic raw materials

Location:
Room 501, Unit 6, No. 40, hushan road,Licang,Qingdao

Payment Terms:
TT against copy of documents,TT against B/L draft before shipment,100% TT in advance

Average lead Time:
10

Total Annual Revenue:
$1 million-$2.5 million

Total Employees:
11-50

Year of Establishment:
2017

QINGDAO EASTCHEMSORCES TRADE LIMITED is a leading Manufactory supplier of Sorbitol, Citric acid, Sodium hypochlorite based in Qingdao, Shandong, China. With a commitment to quality and customer satisfaction, QINGDAO EASTCHEMSORCES TRADE LIMITED has become a trusted name in the industry. Our product line includes a range of high-quality Sorbitol, Citric acid, Sodium hypochlorite, which are available at competitive prices. QINGDAO EASTCHEMSORCES TRADE LIMITED has established itself as a reliable supplier of chemical products on the echemi.com.

Inquiry History

34 Inquiries

Country	Product	Purchase Quantity	Date Posted
India	L-Methionine	100.00 KG	Jun 6, 2025
Malaysia	L-Methionine	20.00 MT	Apr 1, 2026
Malaysia	L-Methionine	20.00 MT	Jun 16, 2026
India	Methionine	1.00 20' Fcl	May 25, 2026
India	L-Methionine	1.00 20' Fcl	Apr 27, 2026
India	L-Methionine	200.00 KG	Nov 10, 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
Bangladesh	L-methionine	1 MT	Feb 5, 2025
Singapore	L-Methionine	1 MT	Feb 7, 2024
Guatemala	dl-methionine dl methionine 99% feed grade for poultry feedPopular 1 buyer	25 MT	Oct 31, 2023
India	methionine	100.00 KG	Sep 5, 2023
India	L-Methionine	100 G	May 28, 2026
India	L-Methionine	5000 KG	Apr 5, 2026
India	L-Methionine	1.00 KG	Nov 10, 2025
India	L-Methionine	20.00 TON	May 17, 2025
Thailand	Methionine	1 KG	Mar 17, 2025
Ecuador	METIONINA	1 MT	Feb 25, 2025
Romania	L-METHIONINE	200 KG	Mar 12, 2024

Go to Page

Post an enquiry for this product

More Choices Find All Products for Sale 

Product Name	Grade / Content	Supplier Name	Details
L-Methionine Food Grade	Food Grade/	Hengshui Changhao Biological Technology Co., Ltd.	Inquiry
L-methionine amino acid	/	Yiling Wanyang Import and Export Co.,ltd	Inquiry
China Largest factory Manufacturer Supply High Quality L-Methionine CAS 63-68-3	Food Grade/99.9	LEADER BIOCHEMICAL GROUP	Inquiry
L-Methionine pharmaceutical grade 99% white powder SNC \| Good Fortune	pharmaceutical grade/food grade/99	SNC \| GOOD FORTUNE	Inquiry
PREMIUM INGREDIENT food grade amino acids L-Methionine AJI/USP/FCC/EP	USP/AJI/FCC/EP grade/99	PREMIUM INGREDIENT CO.,LTD	Inquiry

Hot Related Products



Feedback & Suggestions

Send Message

Thank you for your feedback. If you require further assistance, please contact us by email at info@echemi.com or call us at +86-532-55729510.

L - Methionine

Product Description

Seller Information