DL-cysteine hydrochloride CAS 10318-18-0

DL-cysteine hydrochloride - Names and IdentifiersNameDL-cysteine hydrochlorideSynonymsHalf-cyst

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DL-cysteine hydrochloride - Names and Identifiers

Name	DL-cysteine hydrochloride
Synonyms	Half-cystine H-DL-Cys.HCl DL-Cysteine HC1 -Mer-capto-alanine hydrochloride,dl-cystein DL-cysteine hydrochloride Cysteine, hydrochloride, DL- cysteine hydrochloride hydrate H-DL-Cys-OH·HCl DL-Cysteine hydrochloride 2-Amino-3-mercaptopropanoic acid Hydrochloride
CAS	10318-18-0
EINECS	233-698-2
InChI	InChI=1/C3H7NO2S.ClH.H2O/c4-2(1-7)3(5)6;;/h2,7H,1,4H2,(H,5,6);1H;1H2

DL-cysteine hydrochloride - Physico-chemical Properties

Molecular Formula	C3H8ClNO2S
Molarmassa	157.62
Melting Point	109-112 °C
Boling Point	389.7°C at 760 mmHg
Blixtpunkt	189.5°C
Vattenlöslighet	soluble
Solubility	H2O: soluble
Vapor Presure	2.47E-07mmHg at 25°C
Utseende	Colorless crystal
BRN	4150473
Lagringstillstånd	Keep in dark place,Inert atmosphere,Room temperature
Sensitive	Air Sensitive & Hygroscopic
MDL	MFCD00064552
Physical and Chemical Properties	(R) type: Double Crystal monoclinic or orthogonal crystal, melting point 178 ℃,[α] 26.5(mol/L hydrochloric acid), with imine taste, in the neutral or slightly alkaline solution is easy to be air oxidation into cystine, acidic environment is more stable, soluble in water, ethanol, acetic acid, insoluble in ether, acetone, ethyl acetate, benzene, carbon disulfide and carbon tetrachloride.
Use	Acetylcysteine intermediates, food additives, enzyme growth inhibitors, vitamin C antioxidants, antidote.

DL-cysteine hydrochloride - Risk and Safety

Hazard Symbols	Xi - Irritant
Risk Codes	36/37/38 - Irritating to eyes, respiratory system and skin.
Safety Description	S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. S37/39 - Wear suitable gloves and eye/face protection
WGK Germany	3
RTECS	HA2200000
FLUKA BRAND F CODES	3-10-23
HS Code	29309016

DL-cysteine hydrochloride - Introduction

[α] 26 · 5(mol/L hydrochloric acid), with imine flavor, easy to be oxidized to cystine by air in neutral or slightly alkaline solution, stable in acidic environment, soluble in water, ethanol, acetic acid, insoluble in ether, acetone, ethyl acetate, benzene, carbon disulfide and carbon tetrachloride.

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