L-Cysteine HCL Anhydrous

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INTRODUCTION

Parameters

Product	L-Cysteine Hydrochloride Anhydrous
CAS No.	52-89-1
EINECS	200-157-7
Molecular Formula	C₃H₈ClNO₂S
Molecular Weight	157.62
Structural Formula
Quality Standard	AJI92
Packing	25kg per drum with inner PE bag
Shelf Life	12 Months Preserve in well-closed containers and protected from light
Specification	Standard
Identification	Infrared Absorption
Appearance	White crystalline powder
Specific rotation［α］_D²⁰	+5.6^o~+8.9^o
State solution(Transmittance)	Clear and colorless Not less than 98.0%
Chloride(Cl)	22.30%~22.60%
Ammonium(NH₄)	Not more than 0.02%
Sulphate (SO₄)	Not more than 0.02%
Iron (Fe)	Not more than 10ppm
Heavy metals (Pb)	Not more than 10ppm
Arsenic(As₂O₃)	Not more than 1ppm
Other Amino acids	Chromatographically Not detectable
Loss on drying	Not more than 1.0%
Residue on ignition(Sulfated)	Not more than 0.1%
Assay	98.0~102.0%
pH value	1.5~2.0
Total plate count	≤ 1000cfu/g
Yeast & Molds	≤ 100cfu/g
Coliforms	≤ 10cfu/g
E Coli	Negative
Salmonella	Negative
Pseudomonas	Negative
S.Aureus	Negative