Basic Info.
Product Description
Quick Details
Product name:L-Cysteine
CAS number: 52-90-4
Molecular formula:C3H7NO2S
Molecular weight: 121.16
EINECS:200-158-2
Typical Properties
| Melting point | 240 °C (dec.) (lit.) |
| Boiling point | 293.9±35.0 °C(Predicted) |
| alpha | 8.75 º (c=12, 2N HCl) |
| density | 1.197 (estimate) |
| refractive index | 8.8 ° (C=8, 1mol/L HCl) |
| FEMA | 3263 | L-CYSTEINE |
| storage temp. | Store below +30°C. |
| solubility | H2O: 25 mg/mL |
| pka | 1.92(at 25ºC) |
| form | Solid |
| color | White |
| PH | 4.5-5.5 (100g/l, H2O, 20ºC) |
| Odor | sulfury |
| Odor Type | sulfurous |
Usage
L-Cysteine is a non-essential amino acid that can be synthesized by the human body under normal physiological conditions if a sufficient quantity of methionine is available.
Packaging and Shipping
Packaging:25KG/ bag. Compound cowhide paper bag, lined with food grade plastic bag
Storage
Keep container tightly closed, store in a cool, dry, well-ventilated area.
Company Profile
1.More than 10 years chemical exporting experience
We have produced chemical more than fifteen years., 80% products are for export .
More than 10 years chemical exporting experience. Good and stabilized factory price.
2.Strict quality control system
We has passed through the ISO9001:2015 Quality System Certificate, we have strict quality control system
3.Supply sample
Before order , we can send the sample for your testing . We ensure the quality is the same as bulk quantity .
Our Service
1.Supply sample
2.The packing also can be according the customers` requirment
3.Any inquiries will be replied within 24 hours
4.we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate. If your markets have any special requirements, let us know.
5.Factory price.
6.Prompt delivery. We have good cooperation with many professional forwarders, We can send the products to you once you confirm the order.
7.We can accept various payment methods, L/C, T/T, D/A, D/P, O/A, paypal, Western Union etc., and we cooperate with Sinosure many years.
