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CAS 52-90-4 L-Cysteine White Solid Industrial Fine Chemicals

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CAS 52-90-4 L-Cysteine White Solid Industrial Fine Chemicals

CAS 52-90-4 L-Cysteine White Solid Industrial Fine Chemicals
CAS 52-90-4 L-Cysteine White Solid Industrial Fine Chemicals CAS 52-90-4 L-Cysteine White Solid Industrial Fine Chemicals

Großes Bild :  CAS 52-90-4 L-Cysteine White Solid Industrial Fine Chemicals

Produktdetails:
Herkunftsort: CHINA
Markenname: yunbangpharm
Zertifizierung: ISO9001/SGS
Modellnummer: YB311
Zahlung und Versand AGB:
Min Bestellmenge: ausgehandelt werden
Preis: To Be Negotiated
Verpackung Informationen: 1kg 5kg 25kg
Lieferzeit: 3-7 Arbeitstage
Zahlungsbedingungen: L/C, D/A, D/P, T/T, Western Union, MoneyGram

CAS 52-90-4 L-Cysteine White Solid Industrial Fine Chemicals

Beschreibung
Produktname: L-Cystein CAS: 52-90-4
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
CAS 52-90-4 L-Cysteine White Solid Industrial Fine Chemicals 0

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
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

CAS 52-90-4 L-Cysteine White Solid Industrial Fine Chemicals 1


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