D-Cysteine Hydrochloride Monohydrate

D-Cysteine Hydrochloride Monohydrate - Names and Identifiers

Name	D-Cysteine hydrochloride monohydrate
Synonyms	D-CYSTEINE HCL H-D-CYS-OH HCL H-D-Cys-OHHClH2O H-D-Cys-OH.HCl.H2O D-Cysteine Hcl Mono D-CYSTEINE HYDROCHLORIDE D-Cysteine HCL monohydrate D-cysteine hydrochloride hydrate D-Cysteine Hydrochloride Monohydrate D-Cysteine hydrochloride monohydrate Cysteine hydrochloride monohydrate, D- (S)-2-Amino-3-mercaptopropanoic acid hydrochloride hydrate
CAS	207121-46-8
EINECS	251-043-9
InChI	InChI=1/C3H7NO2S.ClH.H2O/c4-2(1-7)3(5)6;;/h2,7H,1,4H2,(H,5,6);1H;1H2/t2-;;/m1../s1

D-Cysteine Hydrochloride Monohydrate - Physico-chemical Properties

Molecular Formula	C3H8ClNO2S
Molar Mass	157.62
Melting Point	~185°C (dec.)
Boling Point	293.9°C at 760 mmHg
Flash Point	131.5°C
Water Solubility	almost transparency
Solubility	DMSO (Slightly), Methanol (Slightly)
Vapor Presure	0.000411mmHg at 25°C
Appearance	Crystalline Powder
Color	White to yellow
Storage Condition	Inert atmosphere,2-8°C
Refractive Index	-6 ° (C=8, 1mol/L HC

D-Cysteine Hydrochloride Monohydrate - 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.
WGK Germany	3
FLUKA BRAND F CODES	3-10-23

D-Cysteine Hydrochloride Monohydrate - Introduction

D-Cysteine hydrochloride monohydrate is a chemical compound with the formula C3H7NO2S · HCl · H2O. The following is a description of its nature, use, preparation and safety information:

Nature:
-Appearance: D-Cysteine hydrochloride monohydrate as a colorless crystalline solid.
-solubility: soluble in water, high solubility.
-Chemical activity: It is a weak amino acid with acidity.

Use:
-Drugs: D-Cysteine hydrochloride is widely used in drug production, especially in anti-cancer drug preparations, which has the effect of adjuvant treatment of tumors.
-Cosmetics: It can also be used as a moisturizer and antioxidant in cosmetics.

Preparation Method:
The preparation method of D-cysteine hydrochloride monohydrate usually involves the following steps:
1. Dissolve D-cysteine in water and add appropriate amount of hydrochloric acid to adjust pH value.
2. Slowly add ethanol to the stable solution.
3. Crystal growth: Continue to stir the solution and grow crystals at room temperature.
4. Filtration and drying: The crystals were filtered and dried at low temperature to obtain monohydrate.

Safety Information:
-D-cysteine hydrochloride monohydrate is generally non-toxic to the human body, but it is still necessary to follow the corresponding safety procedures before use.
-Avoid direct contact with skin and eyes during operation to avoid irritation or damage.
-Avoid contact with acidic or oxidizing agents during storage and handling.
-If inhalation or ingestion occurs, seek medical attention immediately.

Last Update：2024-04-09 01:59:54

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