 Home > Active Pharmaceutical Ingredients > Antibiotics > l-Methionine for Sale > 99% L-Methionine

99% L-Methionine

Name: 99% L-Methionine
Brand: HyperChem
SKU: pr2507231142
Price: 10 USD
Availability: InStock

TDS 33 Inquiries

Unit Price: Get Latest Price 

CAS No.:

63-68-3

Grade:

Pharmaceutical Grade

Content:

99%

Port:

SHANGHAI

Brand:

HyperChem

Packaging:

1kg/Bag, 25kg/drum

Price valid (until):

2025-08-23

Contact Supplier

 Chat Now

Hangzhou Hyper Chemicals Limited

Company Type:

Trader

Location:

China

Qualification:

Main Products:

Pharmaceuticals,Peptide,Cosmetics,Nutritional Supplements

 Visit Store

Product Description
Seller Information
Inquiry History

Description

Name	L-Methionine
CAS number	63-68-3
Description	L-Methionine is colorless or white shiny flake crystal or white crystalline powder with a slightly special smell and slightly bitter taste.
Structural formula
Molecular Formula	C5H11NO2S
Molecular Weight	149.21 g/mol
Appearance	White powder
Quality Standard	99%
Storage Condition	Cool dry place( away from the light)
Shelf Life	>2 years if stored properly
Sample package	Aluminium foil bag
Commercial package	Aluminium Tin, Fiber drum
Origin	China

L-Methionine More Info

L-Methionine serves as a precursor for important molecules, including glutathione and S-adenosylmethionine (SAMe), which are involved in detoxification, antioxidant activity, and methylation processes. It is absorbed in the gastrointestinal tract and metabolized primarily in the liver, contributing to liver health, cellular repair, and neurotransmitter regulation. Its unique sulfur group enables it to participate in critical biochemical pathways.

Therapeutic Applications

This amino acid is used to support liver function, particularly in cases of acetaminophen toxicity or chronic liver conditions. It is also employed in nutritional therapy for protein deficiency, wound healing, and metabolic disorders. Additionally, L-Methionine may be included in formulations aimed at promoting healthy skin, hair, and nails due to its role in keratin production.

Adverse Effects

When taken in appropriate doses, L-Methionine is generally safe, but excessive intake may lead to gastrointestinal discomfort, nausea, or diarrhea. In rare cases, elevated homocysteine levels (a potential cardiovascular risk factor) have been observed with prolonged high-dose supplementation. Individuals with certain metabolic conditions should use it under medical supervision to avoid imbalances.

FAQ

Q1. Can I get a free sample?

We can send you a samll free sample, and you only need to pay for the shipping cost.

Q2. What is the HyperChem payment term?

T/T in advance
LC at sight
DP at sight

Bank transfer

PayPal

Bitcoin...

Q3. What is HyperChem shipment policy?

Our policy is to strive for the quickest shipment time possible.

For ready stock samples, they are usually shipped within 3 working days after payment received.
For non-ready stock, please contact HyperChem sales team to negotiate.

Q4. What is HyperChem shipment term?

By Express
FedEx UPS DHL EMS
Fast: 3-7 days around, high cost, door to door service

By Air
Suitable for more than 50kg
Fast: 3-7 days, hight cost, port to port, professional broker needed

By Sea
Suitable for more than 500kg
Fast: 7-45 days, low cost, port to port, professional broker needed

We will always attempt to utilize the quickest and most affordable way for customers to receive orders. And follow -up with customers via email for all shipment details as well as updated track information until it arrives without damage.

Q5. What HyperChem will provide after shipment?

For sample orders:
After shipment is done, an timely email including:

1. Track details (Fedex /TNT/DHL/EMS Track number)
2. Packaging photo
3. COA, MSDS, etc
4. Dispatch date & Estimated arriving time
5. Shipping invoice

For commercial orders
A full set of shipment documents as well as package photos can be provided in scan-copy and original, to help customers complete the customs clearance process.

Company Profile

Established in 2013, Hyper Chem has exclusive tie-ups with leading manufacturers, supplying raw materials produced in GMP and ISO 9002 certified facilities, and provides high-quality ingredients and raw materials to cater to the requirements of our diverse range of clients.

Among them, our key client industrial sectors around the global are:

Pharmaceuticals
Nutrition Ingredients/ Dietary supplements
Cosmetic Ingredients
Food Ingredients
Veterinary API
Agriculture fertilizer
Custom Synthesis lab supply

HyperChem provides to its wonderful and honorable clients comprehensive purchasing and distribution services which ensure that we are delivering the right generic, raw, or customized product, make sure that we are delivering it at the right time, ensure that it is delivered in the specified amount, and in the right kind of packaging to clients and customers of all types of industries irrespective of their size of operation.

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:

Antibiotics

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:
Pharmaceuticals,Peptide,Cosmetics,Nutritional Supplements

Location:
Rm. 803, Tower 4, LOFT49 Creative City Pioneer Zone, No.88 Jiru Rd. Gongshu Dist., Hangzhou, 310015 ZJ, 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:
10

Total Annual Revenue:
$5 million-$10 million

Total Employees:
11-50

Year of Establishment:
2013

Certifications:
Certification Report by Bureau Veritas

About HyperChem

Established in 2013, Hyper Chem has exclusive tie-ups with leading manufacturers, supplying raw materials produced in GMP and ISO 9002 certified facilities, and provides high-quality ingredients and raw materials to meet the needs of a diverse range of pharmaceutical cosmetics ingredients and nootropic supplements companies worldwide.

Our Competitiveness

One-stop supply

Wide Range Of products including pharmaceutical, Cosmetic Ingredients and nootropic supplements

Among all the pharmaceuticals,

90% of them with GMP certificates,

85% of them with DMF files and

50% of them passed FDA approval,

30% get CEP certificate

20% are new R&D products.

Custom Repackaging Service

We can efficiently repackage your material into sample sizes, custom batch-specific sizes, or semi-bulk package sizes according to your specifications. And ensures the product is packaged in a quality-controlled environment and will maintain its integrity throughout every stage of the process.

Quality Control/Quality Assurance

HyperChem is committed to delivering on its promises of top-quality products with verified quality data.

All materials are vigorously inspected by the factory and/or outsourced analytical laboratories to ensure each and every lot meets or exceeds our reference standards.

Trade assurance service with 100% payment protection, It is best achieved by delivering products and services 100% right the first time, on time, every time.

Professional

Transparent Communication

Fast Reaction,

Professional Suggestion

Beyond Expectation.

We have exclusive partnerships with research and production facilities across the country and we offer varied pharmaceutical services in the most cost-efficient way. The production facilities are GMP, WHO-GMP, EU GMP and US FDA approved and are backed by strong regulatory support such as Dossier, DMF, Tech Pack and relevant Stability studies for regulatory filings.

Inquiry History

33 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
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
Serbia	methionine	20.00 TON	Dec 20, 2023
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

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
L - Methionine	Pharmaceutical grade / Food grade/99	QINGDAO EAST CHEMSOURCES TRADE 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

99% L-Methionine

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

Related Products

More Choices Find All Products for Sale 

Related Searches

Hot Related Products