INCI名稱：

D-半胱氨酸鹽酸鹽

英文名稱：

D-Cysteine hydrochloride

CAS號：

32443-99-5

HS編碼

2930909099

化學(xué)式：

C₃H₈ClNO₂S

分子量：

157.619

中文別名：

D-半胱氨酸鹽酸鹽;

D-半胱氨酸鹽酸鹽一水化合物;

D-半胱氨酸鹽酸一水化合物;

D-beta-巰基丙氨酸鹽酸鹽;

D-Β-巰基丙氨酸鹽酸鹽;

N-甲基-DL-丙氨酸

英文別名：

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    標(biāo)

Specification

標(biāo)  準(zhǔn)

Standard

外觀 Appearance

白色或類白色結(jié)晶性粉末White or almost white crystalline powder

溶液外觀

Appearance of the Solution

透明無色至淺黃色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%

灼燒殘?jiān)?/span> Residue on Ignition

≤0.1%

氯化物Chloride

≤19.8~20.8%

硫酸鹽sulfate

≤0.03%

重金屬（鉛） Heavy metal(Lead)

≤10 ppm

鐵鹽 Ironic Salt

≤10 ppm

銨鹽Ammonium salt

≤0.02%

砷鹽As

≤1.0%

透光率Light transmittance

≥98.0%

含量 Assay(drying basis)

98.5~101.0%

微生物檢測 Microbial Test

總菌數(shù) Total Aerobic

≤1000cfu/g

霉菌和酵母 Yeast ＆ Mold

≤100cfu/g

大腸桿菌 E.coli

Negative

沙門氏菌 Salmonella

Negative

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