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Methyl acetyl-L-cysteinate

CAS No.
7652-46-2
Chemical Name:
Methyl acetyl-L-cysteinate
Synonyms
N-ACETYL-L-CYSTEINE METHYL ESTER;Ac-Cys-Ome;AC-L-CYS-OME;(AC-CYS-OME)2;N-Acetyl-L-cysteine(OMe);Methyl acetyl-L-cysteinate;Methyl N-acetyl-L-cysteinate;ACETYL-L-CYSTINE DIMETHYL ESTER;L-Cysteine,N-acetyl-,methyl ester;methyl (2R)-2-acetamido-3-sulfanylpropanoate
CBNumber:
CB0128632
Molecular Formula:
C6H11NO3S
Molecular Weight:
177.22
MDL Number:
MFCD00237476
MOL File:
7652-46-2.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-05-27 17:17:56

Methyl acetyl-L-cysteinate Properties

Melting point 77-81 °C
Boiling point 326.4±32.0 °C(Predicted)
Density 1.170±0.06 g/cm3(Predicted)
storage temp. under inert gas (nitrogen or Argon) at 2-8°C
solubility Chloroform (Sparingly), Methanol (Slightly)
form Solid
pka 9.13±0.10(Predicted)
color White to Off-White
optical activity [α]20/D 24.0±3°, c = 1% in methanol
BRN 1724357
Major Application peptide synthesis
InChI InChI=1S/C6H11NO3S/c1-4(8)7-5(3-11)6(9)10-2/h5,11H,3H2,1-2H3,(H,7,8)/t5-/m0/s1
InChIKey QTKAQJWFVXPIFV-YFKPBYRVSA-N
SMILES C(OC)(=O)[C@H](CS)NC(C)=O
UNSPSC Code 12352209
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H302
Precautionary statements  P501-P270-P264-P301+P312+P330
PPE Eyeshields, Gloves, type N95 (US)
Safety Statements  22-24/25
WGK Germany  3
10-23
Storage Class 11 - Combustible Solids

Methyl acetyl-L-cysteinate price More Price(35)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 01042 N-Acetyl-L-cysteine methyl ester ≥90% (HPLC) 7652-46-2 5g $306 2026-04-30 Buy
TRC TRC-A145225-500G N-Acetyl-L-cysteine Methyl Ester 7652-46-2 500g $80 2026-06-03 Buy
TRC TRC-A145225-250MG N-Acetyl-L-cysteine Methyl Ester 7652-46-2 250mg $57 2026-06-03 Buy
TRC TRC-A145225-1G N-Acetyl-L-cysteine Methyl Ester 7652-46-2 1g $67 2026-06-03 Buy
Biosynth HAA65246 N-Acetyl-L-cysteine methyl ester 7652-46-2 5g $413 2026-06-04 Buy
Product number Packaging Price Buy
01042 5g $306 Buy
TRC-A145225-500G 500g $80 Buy
TRC-A145225-250MG 250mg $57 Buy
TRC-A145225-1G 1g $67 Buy
HAA65246 5g $413 Buy

Methyl acetyl-L-cysteinate Chemical Properties, Uses, Production

Uses

N-Acetyl-L-cysteine Methyl Ester is used in the preparation of benzyl mono-fluorophosphonate and benzyl penta-fluorophosphate anions as physiologically stable phosphotyrosine mimetics and inhibitors of protein tyrosine phosphatases. It can also be used in the preparation of anthracene derivatives.

reaction suitability

reaction type: solution phase peptide synthesis

Methyl acetyl-L-cysteinate Preparation Products And Raw materials

Raw materials

Preparation Products

Methyl acetyl-L-cysteinate Suppliers

Global Suppliers ( 99)
Supplier Tel Email Country ProdList Advantage
Shandong Jirun Biomedical Technology Co., Ltd. 0539-0539-8613587 17661611089 2639273505@qq.com China 237 58
Meryer (Shanghai) Chemical Technology Co., Ltd. 4006356688 18621169109 market03@meryer.com China 40202 62
Adamas Reagent, Ltd. 400-6009262 15618770481 yhx@titansci.com China 14098 59
Syntechem Co.,Ltd info@syntechem.com China 12973 57
Shanghai Topbiochem Technology Co., Ltd 021-58170097 info@topbiochem.com China 9510 58
Guangzhou Isun Pharmaceutical Co., Ltd 020-39119399 18927568969 isunpharm@qq.com China 4773 55
Bide Pharmatech Ltd. 400-164-7117 18317119277 product02@bidepharm.com China 40000 60
Shanghai Macklin Biochemical Co.,Ltd. 15221275939 15221275939 shenlinxing@macklin.cn China 15775 55
Nanjing Chalf-Pharm Technology Co., Ltd. 025-57018978 18251899859 sales@chalf-pharm.com China 5855 50
Jiangsu Aikon Biopharmaceutical R&D co.,Ltd. 025-66028182 17714375163 yftan@aikonchem.com China 16674 50

View Latest Price from Methyl acetyl-L-cysteinate manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
N-ACETYL-L-CYSTEINE METHYL ESTER pictures 2026-06-30 N-ACETYL-L-CYSTEINE METHYL ESTER
7652-46-2
1KG 98 10000KGS Shaanxi Dideu New Materials Co. Ltd
N-ACETYL-L-CYSTEINE METHYL ESTER pictures 2024-07-21 N-ACETYL-L-CYSTEINE METHYL ESTER
7652-46-2
1kg 99% 10ton JINING XINHE CHEMICAL CO., LTD
methyl (2R)-2-acetamido-3-sulfanylpropanoate pictures 2021-07-02 methyl (2R)-2-acetamido-3-sulfanylpropanoate
7652-46-2
$10.00-15.00 1KG 99%+ HPLC Zhuozhou Wenxi import and Export Co., Ltd

Methyl acetyl-L-cysteinate Spectrum

L-Cysteine,N-acetyl-,methyl ester Methyl acetyl-L-cysteinate (AC-CYS-OME)2 ACETYL-L-CYSTINE DIMETHYL ESTER AC-L-CYS-OME Methyl N-acetyl-L-cysteinate N-Acetyl-L-cysteine methyl ester >=90% (HPLC) methyl (2R)-2-acetamido-3-sulfanylpropanoate N-Acetyl-L-cysteine(OMe) (R)-Methyl 2-acetamido-3-mercaptopropanoate|||N-Acetyl-L-cysteine methyl ester N-Acetyl-L-cysteine methyl ester Ac-Cys-Ome N-ACETYL-L-CYSTEINE METHYL ESTER 7652-46-2 Amino Acid Derivatives Peptide Synthesis Specialty Synthesis Cysteine/Cystine Amino Acid Derivatives Cysteine/Cystine Peptide Synthesis