D-半胱氨酸盐酸盐-水物 D-cysteine ​​hydrochloride-hydrate 32443-99-5

INCI名称：

D-半胱氨酸盐酸盐

英文名称：

D-Cysteine hydrochloride

CAS号：

32443-99-5

HS编码

2930909099

化学式：

C₃H₈ClNO₂S

分子量：

157.619

中文别名：

D-半胱氨酸盐酸盐;

D-半胱氨酸盐酸盐一水化合物;

D-半胱氨酸盐酸一水化合物;

D-beta-巯基丙氨酸盐酸盐;

D-Β-巯基丙氨酸盐酸盐;

N-甲基-DL-丙氨酸

英文别名：

D-CYSTEINE HCL MONOHYDRATE

D-CYSTEINE HYDROCHLORIDE 1-HYDRATE;

H-D-Cys-OH.HCl.H2O;

L-cysteine hydrochloride;

D-CYS.HCL.H2O;

D-Cys-OH hydrochloride;

D-Cysteinehydrochloride;

H-D-CYS-OH HCL;

D-cysteine HCL monohydrate;

H-Cys-OH*HCl;

D-Cystein;

D-CYSTEINE HCL;

D-Cysteine hydrochlo;

H-D-Cys-OH.H2O.HCl;

D-Cys hydrochloride

D-Cysteine,hydrochloride (1:1)

指    标

Specification

标  准

Standard

外观 Appearance

白色或类白色结晶性粉末White or almost white crystalline powder

溶液外观

Appearance of the Solution

透明无色至浅黄色Transparent colorless to light yellow

pH值 pH value

1.5~2.0

比旋度 Specification Rotation

+5.5°~+7.0°

干燥失重 Loss on Drying

≤8.0~12.0%

灼烧残渣 Residue on Ignition

≤0.1%

氯化物Chloride

≤19.8~20.8%

硫酸盐sulfate

≤0.03%

重金属（铅） Heavy metal(Lead)

≤10 ppm

铁盐 Ironic Salt

≤10 ppm

铵盐Ammonium salt

≤0.02%

砷盐As

≤1.0%

透光率Light transmittance

≥98.0%

含量 Assay(drying basis)

98.5~101.0%

微生物检测 Microbial Test

总菌数 Total Aerobic

≤1000cfu/g

霉菌和酵母 Yeast ＆ Mold

≤100cfu/g

大肠杆菌 E.coli

Negative

沙门氏菌 Salmonella

Negative

Package: In 25Kg net per fiber drum, inner polythene bags. We can provide the packing as per your request.