Pharmaceutical Cosmetic Grade L (+) -Cysteine L-Cysteine CAS 52-90-4

• Type: Pharmaceutical Intermediate
• Chemical Character: Pharmaceutical Intermediate
• Appearance: Powder
• Conformation: White Solid
• Molecular Weight: 121.158
• Logp: 0.23
• Psa: 102.12000
• Transport Package: Barrel or Paper Bag
• Specification: 25kg/Barrel or Paper Bag
• Trademark: Shanghaizhangguan
• Origin: Shanghai
• HS Code: 2942000000
• Production Capacity: 5000 Tons/Year

Product Description

Pharmaceutical Cosmetic grade L (+) -cysteine L-cysteine CAS 52-90-4

CAS 52-90-4	Molecular weight 121.158
Molecular formula C3H7NO2S	Fusing point 220 °C (dec.)(lit.)
density 1.3±0.1 g/cm3	Flash point 131.5±25.9 °C
L-cysteine, an amino acid commonly found in living organisms. One of the alpha amino acids, purple responsive sodium nitroprusside (colored by SH), found in many proteins glutathione and forms insoluble mercaptans with metal ions such as Ag+, Hg+, Cu+, etc.
Appearance properties White crystalline powder
Storage condition  Should be sealed in a dry place away from light.
stability 1. It's stimulating. Its aqueous solution or slightly alkaline aqueous solution can be oxidized to cystine by air, and the acidic solution is more stable. The biochemical reagent content is not less than 98.5% 2. Exists in tobacco leaves.

For the production of vitamin C raw materials, sorbitol fermentation and chemical synthesis can be prepared vitamin C; Nutritive sweeteners, wetting agents, chelating agents and stabilizers; Synthetic resins and plastics, separation and analysis of low boiling point oxygen compounds; Used as stationary liquid for gas chromatography, for the separation and analysis of low boiling point oxygen compounds, amines, nitrogen or oxyheterocyclic compounds; It is also used in organic synthesis. Used as a humidifier for toothpaste, cosmetics and tobacco; Diuretic dehydrating agent; Aquatic water retaining agent.

Shanghai Zhangguan International Trade Co., Ltd. is a comprehensive agent mainly engaged in food additives, feed additives, chemical raw materials, and chemical reagents. The business scope includes: import and export of goods; Technology import and export; Sales of food additives. The company is scientifically managed and people-oriented, with major processing workshops, raw material warehouses, cost warehouses, and a strict quality inspection team. The production process under big data management adheres to standardized operation, stable development, seeking opportunities in stability, and development in change. At the same time, the company continuously optimizes projects, improves management level, and obtains recognition and support from customers for product quality. Strong technical and talent strength has won the deep trust of customers.

FAQ

Q:Can I get a sample before the order because I really don't know how is your quality?
A: We are pleased to provide free samples for you to evaluate the quality.

Q:What's the delivery time? Because we really need them is urgently?
A:7days For sending sample order. 20-30days for regular order , depends your order quantity.

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A: We will provide you with competitive prices and good product quality.