| Identification | More | [Name]
L-Cysteine hydrochloride anhydrous | [CAS]
52-89-1 | [Synonyms]
2-AMINO-3-MERCAPTOPROPIONIC ACID
CYS, HCL
CYSTEINE HCL
CYSTEINE HCL, L-
CYSTEINE HYDROCHLORIDE
H-CYS-OH HCL
L-CYSTEINE HCL
L-(+)-CYSTEINE HYDROCHLORIDE
L-CYSTEINE HYDROCHLORIDE
L-CYSTEINE MONOHYDROCHLORIDE
(R)2-AMINO-3-THIOPROPANOIC ACID HYDROCHLORIDE
(r)-cysteinehydrochloride
(R)-Cysteine-hydrochloride
3-Mercaptoalanine hydrochloride
Cystein chloride
Cysteine chlorhydrate
Cysteine chlorohydrate
Cysteine, hydrochloride, L-
cysteinechlorhydrate
EK 2367 | [EINECS(EC#)]
200-157-7 | [Molecular Formula]
C3H8ClNO2S | [MDL Number]
MFCD00064553 | [Molecular Weight]
157.62 | [MOL File]
52-89-1.mol |
| Chemical Properties | Back Directory | [Appearance]
solid | [Melting point ]
180°C | [alpha ]
5.5 º (c=8, 6 N HCL) | [storage temp. ]
Store at RT. | [solubility ]
H2O: 1 M at 20 °C, clear, colorless
| [form ]
Solid | [color ]
White to light brown | [Odor]
odorless | [Stability:]
Stable, but light, moisture and air sensitive. Incompatible with strong oxidizing agents, some metals. | [optical activity]
[α]20/D +6.4±0.3°, c = 5% in 5 M HCl | [Water Solubility ]
SOLUBLE | [Sensitive ]
Hygroscopic | [Merck ]
14,2781 | [BRN ]
3560277 | [InChIKey]
IFQSXNOEEPCSLW-DKWTVANSSA-N | [LogP]
0.235 (est) | [CAS DataBase Reference]
52-89-1(CAS DataBase Reference) | [NIST Chemistry Reference]
L-cysteine hydrochloride(52-89-1) | [EPA Substance Registry System]
52-89-1(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
Xi | [Risk Statements ]
R36/37/38:Irritating to eyes, respiratory system and skin . | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing . | [WGK Germany ]
2
| [RTECS ]
HA2275000
| [F ]
3-10-23 | [TSCA ]
Yes | [HS Code ]
29309099 | [Safety Profile]
: Moderately toxic by
intraperitoneal, intravenous, and possibly
other routes. Mutation data reported. When
heated to decomposition it emits very toxic
fumes of NOx, SOx, and Cl-. | [Toxicity]
LD50 intraperitoneal in mouse: 1250mg/kg |
| Hazard Information | Back Directory | [Chemical Properties]
solid | [Uses]
As dough conditioner. | [Definition]
ChEBI: A hydrochloride obtained by combining L-cysteine with one molar equivalent of hydrogen chloride. | [General Description]
L-cysteine is a sulfur-containing amino acid. | [Biochem/physiol Actions]
NMDA glutamatergic receptor agonist that is also an agonist at AMPA glutamatergic receptors at high concentrations. | [Purification Methods]
Likely impurities are cystine and tyrosine. Crystallise the salt from MeOH by adding diethyl ether, or from hot 20% HCl. Dry it under vacuum over P2O5. Hygroscopic. [Beilstein 4 III 1580, 1600.] |
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