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L-CYSTEINE FREE BASE
Model No: 52-90-4
Place of Origin: Zhejiang,China (Mainland)
Brand Name: Ningbo Guoguang
CAS No.: 52-90-4
Purity: >= 99.0%

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Payment & Shipping Terms
MOQ: 1000 Kilogram  
Means of Transport: by sea or air  
Supply Capacity
Production Capacity: 20 000 kg
Packing: 25 kg / fiber drum
Delivery Date: 10 days

Molecular Formula: C3H7NO2S
Molecular Weight: 121.15
Quality Standards: AJI92
Packaging and Storage: In 25kgs fiber drum double polyethylene bags inside; Preserve in well-closed containers, at controlled room temperature.
Recommended limit: 1 year.
 

Description: white powder or colourless crystals. Strongly acid taste. Freely soluble in water. Soluble in ethanol, practically insoluble in ether.It can be used for injection, food additives, health care, cosmetics and sports nutrition,etc.
L-Cysteine is one of the 20 natural amino acids and, besides methionine,
the only one which contains sulfur. We have developed a new production method for this amino acid via fermentation from non-animal and non-human raw materials. 

Typical general characteristics:
     
Solubility in water at 20 °C   280 g/l
pH   4.5 - 6

The figures are intended as a guide and should not be used in preparing specifications.

Specification data
     
Specific rotation PH. EUR. (2.2.7) 8.0 - 9.5 °
Ammonium PH. EUR. (2.4.1) max. 300.0 ppm
Chloride PH. EUR. (2.4.4) max. 0.04 %
Sulfate PH. EUR. (2.4.13) max. 0.03 %
Iron PH. EUR. (2.4.9) max. 10.0 ppm
Heavy metals PH. EUR. (2.4.8) max. 10.0 ppm
Ninhydrin positive substances (each) PH. EUR. (2.2.27) max. 0.5 %
Assay PH. EUR. (2.2.20) 98.0 - 101.0 %


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Category: L-CYSTEINE FREE BASE
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