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L-Methionine high purity best price hot sale good food additives

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CAS No.:

63-68-3

Grade:

Food Grade

Content:

98%

Port:

shanghai

Brand:

SKX

Packaging:

25kgs/drum

Price valid (until):

2025-06-14

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Shanghai Kangxin Chemical Co.,

Company Type:

Trader

Location:

China

Qualification:

Main Products:

food additives,health ingredients,pharm intermediates

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Product Description
Seller Information
Inquiry History

Description

Company introduction

Shanghai Kangxin Chemical Co., Ltd was founded in 2000,is one of the manufacturer in China dedicated to providing high quality products of health ingredients and fine chemicals worldwide. The company is a wholly foreign-owned enterprise.Products are mainly sold to the United States, Europe, Southeast Asia and other countries, the quality of its products is deeply trusted by customers.

The company maintains close business relations with large pharmaceutical and health products enterprises at home and abroad.“Standardized management, continuous innovation” is the company's development philosophy.

The company makes use of its many years of experience in domestic and foreign markets, extensive contacts with pharmaceutical and health products enterprises, as well as good reputation in the pharmaceutical and health products industry at home and abroad, professional technical personnel and quality assurance, to provide technical and market services for domestic enterprises to improve the competitiveness of products, to build a bridge to enter the international market; to establish stable, reliable and competitive cooperation channels for domestic and foreign enterprises.

The most of its key personnel engaged in marketing investigation,project development,manufacture as well as quality control in pharmaceutical industry for many years.Apply these experiences and concepts of pharmaceutical API development and manufacturing,they develop new product,manage the productionflow as well as control each step's quality.These make the products standardization of Shanghai Kangxin Chemical to be better than general foodadditive and ingredients manufacturer.

The company has production facilities and quality control instruments consistent with product manufacturing, and a perfect quality management system.The company's production workshop can be used for the production of commercial-scale products. Its multi-purpose and multi-variety equipment and facilities are designed through international standardization and equipped with independent clean areas, which are capable of producing high-end pharmaceutical intermediates, food additives, refined chemicals and other products.

Items	Specifications
Origin	Shanghai, China
Shipment	Prompt
Transport Package	25kg/Drum

This product is an amino acid drug. Nutritional supplement. Prepare amino acid infusion. It is used for acute hepatitis, fatty liver and liver cirrhosis, etc. It is also used as an adjuvant treatment for alcohol and sulfonamide poisoning. In addition, it is widely used as a feed additive to improve feed quality, increase the utilization rate of natural protein and promote the development of animals. For example, DL-methionine can increase the egg production of chickens, increase the weight of pigs and increase the milk production of dairy cows, etc.

Usage:

1. Nutritional supplement. One of the essential amino acids for the human body. Because the price is higher than that of DL-methionine but the effect is the same, DL-methionine is often used.

2. Amino acid drugs and nutritional supplements. It is used for liver cirrhosis and fatty liver. In addition, it is widely used as a feed additive to improve feed quality, increase the utilization rate of natural protein and promote the development of animals. For example, DL-methionine can increase the egg production of chickens, increase the weight of pigs and increase the milk production of dairy cows, etc. Adverse reactions: Contraindicated in cases of hepatic coma.

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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:
Trader

Main Products:
food additives,health ingredients,pharm intermediates

Location:
Room J7945, 2nd Floor, Building 39, 52 Chengliu Road, Jiading District, Shanghai

Payment Terms:
100% TT in advance

Average lead Time:
15

Total Annual Revenue:
$2.5 million-$5 million

Total Employees:
11-50

Year of Establishment:
2000

Certifications:
Kosher,Kosher,Kosher

Shanghai Kangxin Chemical Co., Ltd was founded in 2000,is one of the manufacturer in China dedicated to providing high quality products of health ingredients and fine chemicals worldwide. The company is a wholly foreign-owned enterprise.Products are mainly sold to the United States, Europe, Southeast Asia and other countries, the quality of its products is deeply trusted by customers.

The company maintains close business relations with large pharmaceutical and health products enterprises at home and abroad.“Standardized management, continuous innovation” is the company's development philosophy.

The company makes use of its many years of experience in domestic and foreign markets, extensive contacts with pharmaceutical and health products enterprises, as well as good reputation in the pharmaceutical and health products industry at home and abroad, professional technical personnel and quality assurance, to provide technical and market services for domestic enterprises to improve the competitiveness of products, to build a bridge to enter the international market; to establish stable, reliable and competitive cooperation channels for domestic and foreign enterprises.

The most of its key personnel engaged in marketing investigation,project development,manufacture as well as quality control in pharmaceutical industry for many years.Apply these experiences and concepts of pharmaceutical API development and manufacturing,they develop new product,manage the productionflow as well as control each step's quality.These make the products standardization of Shanghai Kangxin Chemical to be better than general foodadditive and ingredients manufacturer.

The company has production facilities and quality control instruments consistent with product manufacturing, and a perfect quality management system.The company's production workshop can be used for the production of commercial-scale products. Its multi-purpose and multi-variety equipment and facilities are designed through international standardization and equipped with independent clean areas, which are capable of producing high-end pharmaceutical intermediates, food additives, refined chemicals and other product

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

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L-Methionine high purity best price hot sale good food additives

Product Description

Seller Information