S-Methyl-L-cysteine
- Product Name
- S-Methyl-L-cysteine
- CAS No.
- 1187-84-4
- Chemical Name
- S-Methyl-L-cysteine
- Synonyms
- Methylcysteine;H-CYS(ME)-OH;SMC;SMLC;L-Cys（me）-OH;H-L-CYS(ME)-OH;S-METHYL-CYSTEINE;S-Methyl-L-Cys-OH;S-METHYL-L-CYSTEINE;S-MethyI-L-cysteine
- CBNumber
- CB4154282
- Molecular Formula
- C4H9NO2S
- Formula Weight
- 135.18
- MOL File
- 1187-84-4.mol
S-Methyl-L-cysteine Property
- Melting point:
- ~240 °C (dec.)
- alpha
- -29.5 º (c=1,water)
- Boiling point:
- 300.3±37.0 °C(Predicted)
- Density
- 1.149 (estimate)
- refractive index
- -30 ° (C=2, H2O)
- storage temp.
- Keep in dark place,Sealed in dry,Store in freezer, under -20°C
- solubility
- Aqueous Acid (Slightly, Sonicated), Aqueous Base (Sparingly, Sonicated)
- form
- Solid
- pka
- pK1:8.97 (25°C)
- color
- White to Off-White
- BRN
- 1721675
- LogP
- 0.380 (est)
- CAS DataBase Reference
- 1187-84-4(CAS DataBase Reference)
- NIST Chemistry Reference
- s-Methyl-L-cysteine(1187-84-4)
Safety
- Hazard Codes
- Xn
- Risk Statements
- 22
- Safety Statements
- 22-24/25-36/37/39-26
- WGK Germany
- 3
- HS Code
- 29309090
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P270Do not eat, drink or smoke when using this product.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.
P302+P352IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P321Specific treatment (see … on this label).
P330Rinse mouth.
P332+P313IF SKIN irritation occurs: Get medical advice/attention.
P362Take off contaminated clothing and wash before reuse.
P501Dispose of contents/container to..…
N-Bromosuccinimide Price
- Product number
- M6626
- Product name
- S-Methyl-L-cysteine
- Purity
- substrate for methionine sulfoxide reductase A
- Packaging
- 5g
- Price
- $98.3
- Updated
- 2024/03/01
- Product number
- M6626
- Product name
- S-Methyl-L-cysteine
- Purity
- substrate for methionine sulfoxide reductase A
- Packaging
- 25g
- Price
- $160.4
- Updated
- 2024/03/01
- Product number
- M0233
- Product name
- S-Methyl-L-cysteine
- Purity
- >98.0%(T)
- Packaging
- 5g
- Price
- $109
- Updated
- 2024/03/01
- Product number
- M6626
- Product name
- S-Methyl-L-cysteine
- Purity
- substrate for methionine sulfoxide reductase A
- Packaging
- 100g
- Price
- $1180
- Updated
- 2024/03/01
- Product number
- M294655
- Product name
- S-Methyl-L-cysteine
- Packaging
- 100g
- Price
- $600
- Updated
- 2021/12/16
S-Methyl-L-cysteine Chemical Properties,Usage,Production
Chemical Properties
white to light beige fine crystalline powder
Uses
S-Methyl-L-cysteine is a substrate in the catalytic antioxidant system mediated by methionine sulfoxide reductase A (MSRA). It has been studied as a theurapeutic for neurodegenerative diseases including Parkinson′s.
Definition
ChEBI: A cysteine derivative that is L-cysteine in which the hydrogen attached to the sulfur is replaced by a methyl group.
Purification Methods
Likely impurities are cysteine and S-methyl-dl-cysteine. Crystallise it from H2O by adding 4volumes of EtOH. It also crystallises from MeOH with m 234-236o(dec), but after sublimation i t has m 267-270o and [] 27D -31.6o (c 1, H2O). [Rinderknecht et al. Helv Chim Acta 41 1, 10 1958, Theodoropoulos Acta Chem Scand 13 383 1959, Greenstein & Winitz The Chemistry of the Amino Acids J. Wiley, Vol 3 p 1904 1961, Beilstein 4 IV 3145.]
S-Methyl-L-cysteine Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from S-Methyl-L-cysteine manufacturers
- Product
- S-Methyl-L-cysteine 1187-84-4
- Price
- US $1.00-1.00/kg
- Min. Order
- 1 mg
- Purity
- 99%
- Supply Ability
- 100KG
- Release date
- 2018-12-25