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
1.In No Less 8years exporting experience.
2.Lower Price with higher quality
3,Free sample
4,We are sincerely responsible for the "product quality" and "After Service"
Onchem (China) Co.,Ltd is Specialized in APIs, chemical intermediates, herbal extract and pharmaceutical raw materials.
(1) Company Introduction:
Shanghai Upbio Tech 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. our products sell
well in Europe, U.S.A., Japan and Korea, Southeast Asia, Taiwan and other country.
(2) Product Detail
D-Tryptophan
CAS No.:153-94-3-6
purity:99.0%
standard:FCCIV/USP24/EP2000/AJI92
package:25KG/BAG, 20MT/1*20'FCL
Molecular formula: C11H12N2O2
Molecular weight:204.23
Description: White yellowish crystal powder, taste slightly sweet.
Specification
|
Item |
Limit |
|
Appearance |
White yellow crystalline powder |
|
Assay |
99.0%~101.0% |
|
Specific Rotation [α]D20 |
+30.5°~ +32.5° |
|
Transmittance |
≥95.0% |
|
PH |
5.5~ 6.4 |
|
Loss on Drying |
≤0.2% |
|
Residue on Ignition |
≤0.1% |
|
Chloride [Cl-] |
≤0.02% |
|
Sulfate [SO42-] |
≤0.02% |
|
Ammonium [NH4+] |
≤0.02% |
|
Heavy Metals [Pb] |
≤10ppm |
|
Iron [Fe] |
≤10ppm |
|
Arsenic [As2O3] |
≤1ppm |
|
Other Amino Acids |
Conforms |
Delivery: 3days by EMS,FEDEX,DHL.
welcome to inquiry me about all our products, we will provice the
competitive price for u. We are sincerely responsible for the "product quality" and "After Service"
(3) Application
D-Tryptophan is important nutrition product, it is be used as prevention of nicotinic acid deficiency in medicine.
(4) Factory Picture:
