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L-Methionine RC02146

Name: L-Methionine RC02146
Brand: Royalchem
SKU: pr2511231209
Price: 1 USD
Availability: InStock

36 Inquiries

Unit Price:

$1/KG EXW

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CAS No.:

63-68-3

Grade:

Food Grade

Content:

99%

Brand:

Royalchem

Packaging:

25kg/drum

Sample Available:

Yes

Price valid (until):

2029-12-31

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Hangzhou Royalchem Co.,LTD

Company Type:

Trader

Location:

China

Payment Terms:

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

Average Lead Time:

14 days

Qualification:

Main Products:

Pharmaceutical intermediates

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Product Description
Seller Information
Inquiry History

Description

Product Detail

Manufacturer: Hangzhou Royalchem Co.,LTD.

Website: www.cnroyalchem.com

Hangzhou Royalchem Co., Ltd. was founded by a senior team with profound professional backgrounds in the chemical field, focusing on providing comprehensive chemical products and services. Its business scope covers a wide range, including the sales of core chemical products such as pharmaceutical raw materials and intermediates, food/feed additives, specialty chemicals, dyes & pigments, new catalytic materials, chemical reagents, engineering plastics and synthetic resins. It also engages in the sales of daily chemicals, containers, and import-export business, meeting the needs of clients across multiple sectors. Leveraging the technical accumulation of its professional team and strict quality control, the company has established a stable cooperation network in domestic and international markets. It not only provides high-quality raw material support for industries but also promotes global chemical resource circulation through import-export operations. Adhering to the philosophy of "win-win cooperation," Hangzhou Royalchem Co., Ltd. takes professionalism and integrity as its cornerstone, and sincerely looks forward to working with global partners to drive high-quality development in the chemical industry.

Hangzhou Royalchem Co., Ltd. Is focus on services on CMO & CDMO

Esterification, saponification, hydrolysis, alkylation, halogenation, acetylation, pressurized hydrogenation, and other reactions .

Preparation and separation of various impurities .

Development of preparation and purification production processes, salt conversion, liquid preparation post-treatment, etc.

Items	Specifications

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.

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:

Other Food Additives

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:
Pharmaceutical intermediates

Location:
Room 336, Building 7, No. 177 Xingqiao North Road, Xingqiao Street, Linping District, Hangzhou

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

Average lead Time:
14 days

Total Annual Revenue:
Less than $1 million

Total Employees:
Less than 5

Year of Establishment:
2025

Inquiry History

36 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	L-Methionine	1.00 KG	Aug 21, 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	L-Methionine	1 KG	Apr 7, 2026
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	1 MT	Apr 23, 2025
India	L-METHIONINE	25.00 KG	Mar 25, 2025

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L-Methionine RC02146

Product Description

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

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