Serine (abbreviated as Ser or S) is an amino acid with the formula HO2CCH(NH2)CH2OH. It is one of the proteinogenic amino acids. Its codons in the genetic code are UCU, UCC, UCA, UCG, AGU and AGC. By virtue of the hydroxyl group, serine is classified as a polar amino acid.
| ITEMS | STANDARD |
| Appearance | A white or almost white, crystalline powder or colourless crystals. |
| Solubility | Freely soluble in water,practically insoluble in alcohol. |
| Identification test (A,B) | Up to the STANDARD |
| Appearance of solution | Clarity of solution:5% water solution should be clear |
| Colour of solution:5% water solution should be not more intensively coloured than reference solution BY6 | |
| Specific optical rotation | +14.0° to +16.0° |
| Assay | 98.5-101.0% |
| Chlorides | 200ppm max |
| Sulphates | 300ppm max |
| Ammonium | 200ppm max |
| Iron | 10ppm max |
| Heavy metals | 10ppm max |
| Loss on drying | 0.5% max |
| Sulphated ash | 0.1% max |
| Ninhydrin-positive substances (TLC) | Up to the STANDARD |
1, What kinds of certificates can you offer?
Chems is an ISO2008 9001 certified company, as for L-Serine, we can offer HAPPC, KOSHER, HALAL Certificates, ect.
2, Is Chems a manufacturer or just a trading company?
Chems is both manufacturer and trading company, we are L-Serine distributor, at the same time, we are manufacturer of other products.
3, What is the Min Order Quantity of L-Serine?
Different products have different MOQ, for L-Serine, the MOQ is 1mt.
4, What is the price of L-Serine?
Chems is a famous supplier and manufacturer of L-Serine in China, and has been corporate with many L-Serine suppliers for several years, we can provide you with cost-effective L-Serine.
5, How long shall we wait for your reply?
We can guarantee to reply your inquiries of L-Serine in less than 24 hours in working days.
6, What kinds of transportation types can you provide?
Our main transportation methods include air transportation, land transportation and water transportation.
7, What kinds of payment terms can you accept?
The most commonly used payment terms are T/T, L/C, D/P, D/A, etc.
8, How long will I receive my good?
Chems has its own EDC warehouse in Shanghai, when your purchase order has been confirmed, inventory products will deliver within 1 week, other products delivery in 2 weeks.