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.
Biological Activity
S-Methyl-L-cysteine (SMLC) is a substrate in the catalytic antioxidant system mediated by methionine sulfoxide reductase A (MSRA). SMLC is naturally present in garlic, cabbage, and turnips and has been studied as a theurapeutic for neurodegenerative diseases including Parkinsonμs.
When used as a dietary supplement in the Drosphilia model of PD, SMLC increases the efficacy of the MRSA catalytic antioxidant system by providing additional substrate available leading to increased resistance to oxidative stress.
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/kg
- Min. Order
- 1 mg
- Purity
- 99%
- Supply Ability
- 100KG
- Release date
- 2018-12-25