7728-98-5

Basic information

• Product Name: S-methylcysteine
• Synonyms: DL-S-Methyl-Cys-OH;REF DUPL: S-Methyl-DL-Cys-OH;S-Methyl-DL-Cys-OH;(R)-2-AMino-3-(Methylthio)propanoic acid;3-(Methylthio)-DL-alanine;2-Amino-3-methylsulfanylpropanoic acid;H-DL-Cys(Me)-OH
• CAS NO: 7728-98-5
• Molecular Formula: C4H9NO2S
• Molecular Weight: 135.1848
• EINECS: 231-787-0
• Mol File: 7728-98-5.mol
• Article Data: 38

Chemical Properties

• Melting Point: 205-207 °C
• Boiling Point: 300.3 °C at 760 mmHg
• Flash Point: 135.4 °C
• Appearance: /
• Density: 1.26 g/cm³
• Vapor Pressure: 0.000267mmHg at 25°C
• Refractive Index: 1.539
• Storage Temp.: Keep in dark place,Inert atmosphere,Room temperature
• PKA: 2.07±0.10(Predicted)
• CAS DataBase Reference: S-methylcysteine(CAS DataBase Reference)
• NIST Chemistry Reference: S-methylcysteine(7728-98-5)
• EPA Substance Registry System: S-methylcysteine(7728-98-5)

Safety Data

• Hazardous Substances Data: 7728-98-5(Hazardous Substances Data)

Usage

General Description

S-methylcysteine is a naturally occurring compound that belongs to the family of amino acids. It is derived from the amino acid cysteine and is commonly found in various plant sources, including garlic and onions. S-methylcysteine has been studied for its potential health benefits, including its antioxidant and anti-inflammatory properties. It has also been investigated for its potential to have protective effects on the liver and to support cardiovascular health. Additionally, S-methylcysteine has been found to have potential anti-cancer properties, and may play a role in inhibiting the growth of tumor cells. Overall, S-methylcysteine is a compound with promising health benefits and is being researched for its potential therapeutic applications.

InChI:InChI=1/C4H9NO2S/c1-8-2-3(5)4(6)7/h3H,2,5H2,1H3,(H,6,7)

Upstream product

• 19651-44-6 S-methyl-DL-cysteine 
• 74-93-1 methylthiol 
• 921-01-7 D-cysteine 
• 2731-73-9 (S)-3-chloroalanine 
• 32443-99-5 D-cysteine hydrochloride 
• 74-88-4 methyl iodide 
• 52-90-4 L-Cysteine 
• 77-78-1 dimethyl sulfate 
• 56-89-3 L-cystine 
• 2731-73-9 2-amino-3-chloropropanoic acid 
• 5147-00-2 O-acetyl-L-serine 
• 18412-81-2 dodecyl-dimethylsulphonium iodide 
• 58-63-9 inosine 
• 50-89-5 (+/-)-thymidine 

Downstream Products

• 66255-16-1 s-methyl-s-cysteine 
• 16637-59-5 (2R)-2-acetylamino-3-methylthiopropionic acid 
• 81251-82-3 N-(2,4-dinitro-phenyl)-S-methyl-L-cysteine 
• 99855-84-2 N-benzoyl-S-methyl-L-cysteine 
• 792132-38-8 Methionin-ethylester 
• 87123-05-5 N-(2-benzylthio-2-methylpropanoyl)-S-methyl-L-cysteine 

Relevant articles and documents

Direct monitoring of biocatalytic deacetylation of amino acid substrates by1H NMR reveals fine details of substrate specificity

Amino acids are key synthetic building blocks that can be prepared in an enantiopure form by biocatalytic methods. We show that thel-selective ornithine deacetylase ArgE catalyses hydrolysis of a wide-range ofN-acyl-amino acid substrates. This activity was revealed by1H NMR spectroscopy that monitored the appearance of the well resolved signal of the acetate product. Furthermore, the assay was used to probe the subtle structural selectivity of the biocatalyst using a substrate that could adopt different rotameric conformations.

Asymmetric synthesis of (S,R)- and (R,R)-methiin stereoisomers

An asymmetric synthesis of (+)- and (–)-methiine (S-methyl-(R)-cysteine sulfoxide) diastereomers has been developed. These natural sulfur compounds were isolated from a variety of Brassica vegetables. As the starting compound, (R)-cysteine was used, which was methylated to form (R)-S-methylcysteine. Then the oxidation of S-methylcysteine with tert-butyl hydroperoxide catalyzed by the chiral tetra(isopropylate)titanium/(S)- or (R)-Binol complex led to the formation of (1 R,2S)-(+)- or (1 R,2R)-(–)-methiin stereomers.

Composition for promoting differentiation of skin keratinocyte comprising a SAC derivatives or a SMC derivatives

The present invention relates to a composition for promoting keratinocyte differentiation. More specifically, SAC derivative or SMC derivatives as an active ingredient promotes differentiation of keratinocytes to promote skin keratinocyte differentiation, has excellent anti-wrinkling effect, skin barrier recovery effect, and is applicable to pharmaceutical, cosmetic, soap, body, shampoo and pack.