| Customization: | Available |
|---|---|
| CAS No.: | 52-90-4 |
| Formula: | C3h7no2s |
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CAS No.:52-90-4
Other Names:(R)-2-Amino-3-mercaptopropionic acid
MF:C3H7NO2S
EC No.:200-158-2
Grade:Food Grade,Pharm Grade
Standard:USP/AJI/EP/CP
Shelf life:2 Years
Appearance:White Powder
Assay:98.5%-101.0%
Molecular Weight: 121
Description:
L-Cysteine is a semi-essential amino acid found naturally in the human body.Cysteine, along with the amino acids glutamine and glycine, is a building block of the powerful antioxidant glutathione.The amino acid may provide a variety of health benefits. In alternative medicine, L-cysteine is touted as a natural treatment for:Angina Cardiovascular disease:Chronic bronchitis DiabetesFlu,Inflammatory bowel disease and Osteoarthritis.In addition, it is said to enhance lung health in people with chronic obstructive pulmonary disease (COPD), and can also help prevent colon cancer, boost sports performance, and promote detox.
| Appearance | White crystals or crystalline powder |
| Identification | Meet the requirements |
| Specific rotation[α]D20 | +8.3°~ +9.5° |
| State of solution | ≥ 95.0% |
| Chloride(Cl) | ≤ 0.2% |
| Ammonium(NH4) | ≤ 0.02% |
| Sulfate(SO4) | ≤ 0.030% |
| Iron(Fe) | ≤ 10 ppm |
| Heavy metals(Pb) | ≤ 10 ppm |
| Ar senic(As2O3) | ≤ 1 ppm |
| Other amino acids | ≤ 1.0% |
| Loss on drying | ≤ 0.5% |
| Residue on ignition | ≤ 0.1% |
| Assay | 98.0 ~ 101.0% |
| Ph | 4.5 ~ 5.5 |
Q&A
1.How could l get a sample?
Before we received the first order, please afford the sample cost and express fee. We will return the sample cost back to you within your first order.
2.Can you make designs for us?
We have a professional design team to help our customers do design work.Both OEM and ODM orders are accepted.
3.Whether you could make our brand on your products?
Yes. We can print your Logo on both the products and the packages if you can meet our MOQ.
4.How can you provide us high quality products?
We have a professional QC team, every product is shipped after strictly examination.
5.What is your lead time?
7-15days, We will update you eact two-three days!
6.What is your payment?
We accept T/T.L/C.Paypal.Westem union or to be negotiated.Don't worry about anything, if you have any problems, please feel free to contact us.
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