Produktdetails:
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Produktname: | L-Cystein | CAS: | 52-90-4 |
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Bilden: | solide | Farbe: | Weiß |
Speichertemperatur.: | Lagern Sie unter +30 ° C. | Eincs: | 200-158-2 |
PH: | 4,5-5,5 (100g/l, H2O, 20 ℃) |
L-Cysteine CAS 52-90-4
L-Cysteine Basic information |
Product Name: | L-Cysteine |
Synonyms: | (R)-2-Amino-3-mercaptopropanoic acid;3-mercapto-l-alanin;alpha-amino-beta-mercaptopropionicacid;alpha-Amino-beta-thiolpropionic acid;alpha-amino-beta-thiolpropionicacid;Cystein;half-cysteine;L-Cysteine - animal origin |
CAS: | 52-90-4 |
MF: | C3H7NO2S |
MW: | 121.16 |
EINECS: | 200-158-2 |
Product Categories: | Amino Acids;API intermediates;Cysteine [Cys, C];Amino Acids;Amino Acids and Derivatives;alpha-Amino Acids;Antioxidant;Biochemistry;Nutritional Supplements;L-Amino Acids;amino;52-90-4 |
Mol File: | 52-90-4.mol |
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L-Cysteine Chemical Properties |
Melting point | 240 °C (dec.) (lit.) |
alpha | 8.75 º (c=12, 2N HCl) |
Boiling point | 293.9±35.0 °C(Predicted) |
density | 1.197 (estimate) |
bulk density | 300kg/m3 |
FEMA | 3263 | L-CYSTEINE |
refractive index | 8.8 ° (C=8, 1mol/L HCl) |
storage temp. | Store below +30°C. |
solubility | H2O: 25 mg/mL |
pka | 1.92(at 25℃) |
form | Solid |
color | White |
PH | 4.5-5.5 (100g/l, H2O, 20℃) |
Odor | sulfury |
Odor Type | sulfurous |
Optical Rotation | Optical rotation: +8° to +9° (c = 5, 1 N HCl, 20°C). |
biological source | non-animal source |
Water Solubility | 280 g/L (25 ºC) |
Sensitive | Air Sensitive |
λmax | λ: 260 nm Amax: 1.5 λ: 280 nm Amax: 0.2 |
JECFA Number | 1419 |
BRN | 1721408 |
Stability: | Stability Stable, but may be air sensitive. Incompatible with oxidizing agents, bases. |
LogP | -2.49 |
CAS DataBase Reference | 52-90-4(CAS DataBase Reference) |
NIST Chemistry Reference | L-Cysteine(52-90-4) |
EPA Substance Registry System | L-Cysteine (52-90-4) |
Safety Information |
Hazard Codes | Xn,Xi |
Risk Statements | 22-36/37/38-20/21/22 |
Safety Statements | 36-37/39-26-24/25 |
WGK Germany | 3 |
RTECS | HA1600000 |
F | 10-23 |
Autoignition Temperature | 420 °C |
TSCA | Yes |
HS Code | 29309012 |
Hazardous Substances Data | 52-90-4(Hazardous Substances Data) |
Toxicity | LD50 orally in Rabbit: 1890 mg/kg |
Ansprechpartner: Maggie Ma
Telefon: +0086 188 7414 9531