1. Introduction of DL-Cysteine hydrochloride

DL-Cysteine hydrochloride, with the IUPAC name of 2-amino-3-sulfanylpropanoic acid hydrochloride, is one kind of white solid. For being air sensitive & hygroscopic, it belongs to the Product Categories which include Pharmaceutical Intermediates; Amino Acids; Biochemicals and Reagents. When comes to its storage, it should be stored in a cool, dry place. Keep container closed when not in use.

2. Properties of DL-Cysteine hydrochloride

DL-Cysteine hydrochloride has the following properties: (1)Density:>1.0 g/cm³(20 oC); (2)Melting Point:109-112 oC; (3)Boiling Point: 293.9 oC at 760 mmHg; (4)Flash Point: 131.5oC; (5)Vapour Pressure: 0.000411mmHg at 25oC ; (6)Storage temp.: 2-8 oC.

3. Structure Descriptors of DL-Cysteine hydrochloride

(1).InChI: InChI=1S/C3H7NO2S.ClH/c4-2(1-7)3(5)6;/h2,7H,1,4H2,(H,5,6);1H
(2).InChIKey: InChIKey=IFQSXNOEEPCSLW-UHFFFAOYSA-N
(3).Smiles:C([C@@H](CS)N)(O)=O.Cl

4. Use of DL-Cysteine hydrochloride

DL-Cysteine hydrochloride is a nonessential amino acid in humans. It is important in protein crosslinking. It is also used in biochemical research.

5. Safty informations about DL-Cysteine hydrochloride

Hazard Codes:Xi
Risk Statements:36/37/38
36/37/38(Irritating to eyes, respiratory system and skin)
Safety Statements:26-36-37/39
 26(In case of contact with eyes, rinse immediately with plenty of water and seek medical advice)
 36(Wear suitable protective clothing)
 37/39(Wear suitable gloves and eye/face protection)
WGK Germany:3
RTECS:HA2200000
 F:3-10-23

And following are some specific dangerous cases and your first aid measures:
Ingestion:Wash mouth out with water. Get medical aid if irritation or symptoms occur.
Inhalation:Remove from exposure to fresh air immediately. Get medical aid if cough or other symptoms appear.
Skin:Get medical aid if irritation develops or persists. Flush skin with plenty of soap and water.
Eyes:Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. If irritation develops, get medical aid.