N-Acetyl-L-Cysteine 616-91-1 99%
N-Acetyl-L-cysteine Chemical Properties
Melting point 106-108 °C(lit.)
alpha -35.1 ºC (c=2,H2O)
Boiling point 407.7±40.0 °C(Predicted)
density 1.249 (estimate)
refractive index 24 ° (C=JPC Method)
storage temp. 2-8°C
solubility H2O: 100 mg/mL with heating
pka pK1: 9.52 (30°C)
form Solid
color White
Water Solubility Soluble in water, ethanol, methanol, dimethyl sulfoxide, hot isopropyl alcohol, methyl acetate and ethyl acetate. Insoluble in chloroform and ether.
Merck 14,88
BRN 1724426
Stability: Stable. Incompatible with strong oxidizing agents.
InChIKey PWKSKIMOESPYIA-BYPYZUCNSA-N
CAS DataBase Reference 616-91-1(CAS DataBase Reference)
NIST Chemistry Reference Acetylcysteine(616-91-1)
EPA Substance Registry System L-Cysteine, N-acetyl- (616-91-1)
N-Acetyl-L-cysteine Basic information
Product Name: N-Acetyl-L-cysteine
Synonyms: (S)-ALPHA-AMINO-2-NAPHTHALENEPROPIONIC ACID;RARECHEM BK PT 0097;N-ACETYL CYSTEINE;N-ACETYL-3-MERCAPTOALANINE;N-ACETYL-L-(+)-CYSTEINE;N-ACETYL-L-CYSTEINE;N-ALPHA-ACETYL-L-CYSTEINE;AC-L-CYS-OH
CAS: 616-91-1
MF: C5H9NO3S
MW: 163.19
EINECS: 210-498-3
Mol File: 616-91-1.mol
Safety Information
Risk Statements 36/37/38
Safety Statements 22-24/25
WGK Germany 3
RTECS HA1660000
F 10-23
TSCA Yes
HS Code 29309016
Hazardous Substances Data 616-91-1(Hazardous Substances Data)
Toxicity LD50 orally in rats: 5050 mg/kg (Goldenthal)
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