Shanghai Upbio Tech Co.,Ltd（expird）
Free supplier Enterprise Certification
- Free
supplier - 12th
years
Free supplier Enterprise Certification
Business Type:Lab/Research institutions
Product Certification&
Enterprise Certification
Country: 
China (Mainland)
Business Type:Lab/Research institutions
CAS NO.52-90-4
99%(1-1000)Kilogram
1,In No Less five years exporting experience.
2.Lower Price with higher quality
3,Free sample
4,We are sincerely responsible for the "product quality" and "After Service"
Onchem specialized in APIs, chemical intermediates, herbal extract ， pharmaceutical raw materials and health food supplement
Company Introduction:
Onchem (China) Co.,Ltd is a comprehensive manufacturer and an international distribution
of chemicals throughout the world. Specialized in APIs, chemical intermediates, herbal extract and pharmaceutical raw materials.
Product Detailed
Product Name: L-Cysteine
Cas No.: 52-90-4
Description: white crystals crystalline powder. Solubility (H2O, g/100g): about 16(20°)
|
Test item |
Limit |
|
Specific rotation |
+8.3 to +9.5° |
|
State of solution (transmittance) |
Not less than 95.0% |
|
Chloride |
Not more than 0.04% |
|
Ammonium |
Not more than 0.02% |
|
Sulfate |
Not more than 0.030% |
|
Iron |
Not more than 10ppm |
|
Heavy metals(Pb) |
Not more than 10ppm |
|
Arsenic |
Not more than 1ppm |
|
Other Amino Acids |
conforms |
|
Loss on drying |
Not more than 0.5% |
|
Residue on ignition (sulfated) |
Not more than 0.10% |
|
Assay |
98.0 to 101.0% |
|
PH |
4.5 to 5.5 |
Storage: Preserve in tight containers at controlled room temperature.
Recommended limit: 1 year
Factory Picture:
Welcome to our Onchem (China) Co.,Ltd, and welcome to inquiry me about all our products, we will provide the competitive price for u. We are sincerely responsible for the "product quality" and "After Service"