L-CYSTEINE HYDROCHLORIDE MONOHYDRATE INTRODUCTION

 VIADD CHEMICAL COMPANY IS ONE PROFESSIONAL L-CYSTEINE HCL MANUFACTURER, DISTRIBUTOR AND EXPORTER FROM CHINA, INQUIRY BY EMAIL: SALES@VIADDCHEM.COM

L-Cysteine is a non-essential amino acid that can be synthesized by the human body under normal physiological conditions if a sufficient quantity of methionine is available. L-Cysteine is commonly use d as a precursor in the food and pharmaceutical industries. L-Cysteine is used as a processing aid for baking, as an additive in cigarettes, as well as in the preparation of meat flavours.

【Basic Information】

【Chemical Name】

L-Cysteine Hydrochloride Monohydrate 

【CAS No.】7048-04-6

【Specification】USP38,AJI92

【Molecular Formula】C3H10ClNO3S

【Formula Weight】175.63

【Apperance】white crystal or crystal powder with smelly sour

【Synonyms】L-Cys-OH HCl;L-Cys.HCl.H2O;H-Cys-OH¤HCl¤H;H-CYS-OH HCL H2O;CYSTEINE HCL H2O;L-Cys-OH·HCl·H2O;L-CYSTEINE HCL H2O;H-L-CYS-OH HCL H2O;L-CYSTEINE-HCL-H20;L-Cysteine.HCI.H2O 

【Commercial Information】

【Delivery】Within 15 days of order date

【Payment】T/T, D/P, L/C

【Origin】China

【Brand】VIADD

【Supplier】Shenyang Viadd Chemical Co.,Ltd.

【Price Email】sales@viaddchem.com 

【Packing】inner double layer plastic film, outer fiber can; 25kg/drum 

【Shelf Life】in seal and dry place for 1 year

【Certificate】ISO,KOSHER,HALAL,GMP, MSDS, Material Data Sheet, Non GMO,Non Allergen

【Deliver Port】Tianjin/Qingdao

【Documents】Sales Contract, Commercial Invice, Packing List, Weight List, COA, , Cetificate of Origin, Healthey Certificate, FORM A, FORM E, Policy of Indusrance, B/L, Loading container photos, packing photos, shipping advice, etc 

【Specifications】USP28,AJI92

Item	Specifications
	USP		AJI
Appearance	White crystals or crystalline powder; strongly acid taste.
Identification	Infrared Absorption	---
Specific optical rotation	+5.6 °- +8.9 °	+5.5 °- +7.0 °
State of solution (Transmittance)	---	≥ 98.0% clear and colorless
Chloride (Cl)	---	19.89-20.29%
Ammonium(NH4)	---	≤ 0. 002%
Sulfate	≤ 0. 03 %	≤ 0. 020%
Iron	≤ 0. 003 %	10ppm
Heavy Metals (as Pb),	≤ 0.00 15%	≤ 10ppm
Arsenic (as As),	---	≤ 1ppm
Other amino acids	---	Not detected
Organic volatile impurities	Meets the requirement	---
Loss on drying,	8-12 %	8.5-12 %
Residue on ignition,	c	≤ 0.1 0 %
Assay	98.5-101.5 %	9 9.0-10 0.5 %
pH value	---	1.5-2.0
Organic volatile impurities	Meets the requirement	---
Chromatographic purity	0.5% max Individual impurity, 2% max total	---

 【Chemical Properties】

Melting point:175°C

refractive index:  6 ° (C=8, 1mol/L HCl)

storage temp.:  Store at RT.

solubility H2O: 1 M at 20 °C, clear, colorless

form Solid

color White

PH0.8-1.2 (100g/l, H2O, 20℃)

Water Solubility Soluble in cold water.

Sensitive Hygroscopic

Merck 14,2781

BRN 5158059

Stability:Stable. Incompatible with strong oxidizing agents, most common metals, hydrogen chloride

 【L-Cysteine hydrochloride monohydrate Preparation Products And Raw materials】

1.Preparation Products:  N10-(TRIFLUOROACETYL)PTEROIC ACID-->(2,4-DIAMINOPTERIDIN-6-YL)METHANOL HYDROCHLORIDE HYDRATE

2.Raw materials:HYDROGEN SULFIDE-->L-Cystine-->L-Cysteine-->Tin granular