Pharmaceutical grade amino acid D-Cysteine Hydrochloride EP4

Brief Description
CAS No.: CAS No:32443-99-5 Other Names: D-Cysteine hydrochloride monohydra... MF: C3H7NO2S.ClH
EINECS No.: 251-043-9 Place of Origin: Hubei China (Mainland) Type: Antipyretic Analgesics and NSAIDs, Blood ...
Grade Standard: Feed Grade, Medicine Grade Usage: Animal Pharmaceuticals Brand Name: Soleado
Model Number: CAS No:32443-99-5 Purity: 99.6% 
Delivery Terms & Packaging
Packaging Detail:25kg/drum
Delivery Detail:7days
Specifications
Pharmaceutical grade amino acid D-Cysteine Hydrochloride EP4

1.pharmaceutical intermediates of cefminox
2.Other Names: D-Cysteine hydrochloride monohydrate
3.high quality

Item

Specification (EP4)

Result

Appearance

White crystals or crystalline

powder

White crystalline powder

Identification

Positive

Conforms (positive)

Specific rotation

-5.50° to -7.50°

   -5.96°

Ammonium(NH4)

Not more than 0.010%

Not more than 0.010%

Sulfate(SO4)

Not more than 0.030%

Not more than 0.030%

Iron(Fe)

Not more than 0.002%

Not more than 0.002%

Heavy metals(Pb)

Not more than 10ppm

Not more than 10ppm

Other amino acids

Not more than 0.5%

Not more than 0.5%

Loss on drying

8.0% to 12.0%

9.50%

Residue on ignition(sulfated)

Not more than 0.10%

0.06%

Assay

98.5% to 101.0%

   99.6%