Guangzhou Qianyi Chemical Co., Ltd
We are professional supplier of Chitosan,CMC,All kinds of sweetener,Chondroitin sulfate,Fish Collagen Peptide,Ethyl Vanillin,Sildenafil.
Business Type:Trader
Country/Region:China
Ddu Verified
HOT Rank
L-Cystine
Properties:White crystal or crystalline powder, odorless, flavorless, almost insoluble in water or ethanol, soluble in diluted acid or basic hydroxide solutions.
Quality index:
| Item | Index |
| Specific rotatory power[α] D20 | -215º -225º |
| Clarity | ≥ 98.0% |
| Ammonium salt[NH4] | ≤ 0.02% |
| Chloride[CL] | ≤ 0.02% |
| Residue on ignition | ≤ 0.10% |
| Sulfate[SO4] | ≤ 0.02% |
| Iron salt[Fe] | ≤ 10 ppm |
| Heavy metal[Pb] | ≤10 ppm |
| Arsenic salt | ≤1 ppm |
| Other amino acid | Color layer can not be checked out. |
| Loss on drying | 0.20% |
| Content | 98.5 -101.0% |
Use:
Used in biochemical research, nutrient; cure congenital cystinuria etc..
Storage:
Stored in sealed container at room temperature.
Packing:
Packed in cardboard drum with the lining of two layers of plastic bags. NW:25 KG per drum.
