Existing Supplier Overview
我们目前经营硫辛酸、γ-羟基丁酸钙和透明质酸。 我们在氨基酸的供应链上有很大的优势，一个好的氨基酸厂需要有发酵优势，成本高，门槛高，环保要求也高。 我们了解中国的每一个氨基酸工厂，可以为您提供最准确的信息。
SUNCHEM
L-Cysteine
L-Cysteine is a semi-essential sulfur-containing amino acid with key roles in antioxidant glutathione synthesis and protein disulfide bond formation, used in pharmaceuticals, food processing as a dough reducing agent, and cosmetic applications. SUNCHEM supports international buyers with L-Cysteine sourcing from qualified Chinese producers, with quality…
52-90-4
- Lot COA with every shipment
- Samples for your trials
- Technical support for your trial
Product overview & key benefits
L-Cysteine is a semi-essential sulfur-containing amino acid with key roles in antioxidant glutathione synthesis and protein disulfide bond formation, used in pharmaceuticals, food processing as a dough reducing agent, and cosmetic applications. SUNCHEM supports international buyers with L-Cysteine sourcing from qualified Chinese producers, with quality documentation, export coordination, and logistics support.
Technical specifications
| Property | Reference value |
|---|---|
| Density | 1.334 g/cm3 |
| Boiling Point | 293.9ºC at 760 mmHg |
| Melting Point | 220ºC |
| Flash Point | 131.5ºC |
| Solubility | H2O: 25 mg/mL |
| Pka | 1.92(at 25℃) |
| PH | 4.5-5.5 (100g/l, H2O, 20℃) |
| Water Solubility | 280 g/L (25 ºC) |
Existing product reference data. Confirm the specification of the offered grade before ordering.
Applications
Glutathione precursor and antioxidant supplement
Food dough conditioning and reducing agent
Pharmaceutical API and NAC precursor
Cosmetic skin-brightening and hair care ingredient
Hair permanent wave and relaxer ingredient
Biochemical research and protein chemistry reagent
Animal feed nutritional supplement
From first email to approved supply
Send your RFQ
Share your application, quantity, destination and current grade.
Review the documents
Review the producer TDS, a recent COA and SDS with the quotation.
Trial a sample
Run your own tests against your current grade.
Lock the spec
Put approved lot limits into the contract and check every COA against them.
Tell us your requirement. We match the grade.
Share your application, required quantity and destination.
