Specifications

Description


We have the best-quality and favourable price!Welcome inquire!

L-Cysteine monohydrochloride

Molecular formula: C3H7NO2S·HCL·H2O

Molecular weight:  175.63

 

Description:

Colorless to white fine columnar crystal or white crystalline powder with slight odor and taste (slightly sour). A reduction, there has antioxidant and prevent non-enzymatic browning effect. Melting point 175 °C (decomposition). Soluble in water, acidic aqueous solution, pH value was 1.2 when 3% solubility,1.7 when 1% solubility,2.4 when 0.1% solubility. Is also soluble in ethanol, ammonia and acetic acid, insoluble in ether, acetone, benzene, carbon disulfide and chlorine imitation.

One amino acid, but non-essential amino acids

 

Preparation:

By a hair (or animal hair, feathers) with hydrochloric acid heated 6 ~ 8h, hydrolysis, hydrochloric acid distillate by vacuum distillation, plus active carbon, filtration, and after that with ammonia in the crude crystalline L-cystine, and then dissolved and the liquid ammonia and, after recrystallization, and then dissolved in hydrochloric acid and the electrolytic reduction, and concentration, cooling, crystallization, drying derived,

 

Quality standard   FCC,1996

 

1.Assay(dyring base)

98.0%~101.5%

2.Loss on drying            

8.0%~12.0%

3.Residue ignition(GT-27)

≤0.1%

4.Test about Cystine and other amino acids

Negative

5.Lead(GT-18)

≤10mg/kg

6.Heavy metal

≤0.002%

7.Ammonium salt

≤0.03

 

 

Application:

Bread improver; nutritional supplements; antioxidants; color fixative. Of acrylonitrile and aromatic acid poisoning detoxification; the prevention of radiation injury; have a therapeutic effect of bronchitis and phlegm; the absorption of alcohol to acetaldehyde in the body into the role of the solution drunk.

According to GB2760-96 requirements, mutatis mutandis, to spices.


Terms

FOB Price: FOB USD 1~15 / Kilogram
Minimum Order: 1000 Kilogram/Kilograms
Port: Tianjin
Payment Terms: L/C,T/T,Western Union

Jane Yu's Products

Why Join Tradesparq? Free

Over 200,000 suppliers and 3 million products to choose from!

Verify suppliers through your network or from reviews.

Browse over 26 million US shipment records for supplier research and validation!

You can verify Jane Yu using your contacts and professional networks.

Recently Viewed Products
Fiberglass Roving Manufacturers
15 Suppliers & 54 Products
French Lace Manufacturers
74 Suppliers & 416 Products
Stretch Wrap Film Manufacturers
33 Suppliers & 248 Products
Melamine Box Manufacturers
10 Suppliers & 71 Products
Instant Tea Powder Manufacturers
8 Suppliers & 26 Products
Popular Products on Tradesparq
Wool Quilt Manufacturers
8 Suppliers & 33 Products
Fire Alarm Systems Manufacturers
12 Suppliers & 43 Products
Micro Speaker Manufacturers
30 Suppliers & 129 Products
Sheet Paper Manufacturers
275 Suppliers & 1,695 Products
Bathtub Manufacturers
130 Suppliers & 769 Products

How Tradesparq Works:

* Double-click video screen for full-screen.