L-Cystine

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Product
L-Cystine
Posting date : Jun 04, 2014
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Free Member Scince May 05, 2014
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Jennifer
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Product Detail
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Quick Detail
Place of Origin
HS-CODE
29-
Package & Delivery Lead Time
Detailed Description
Product name: L-Cystine Synonyms: L(-)-3,3'-Dithiobis(2-aminopropanoic acid); 2-Amino-3-[(2-amino-2-carboxyethyl)dithio]propanoic acid Formula: C6H12N2O4S2 Molecular: 240.29 CAS number: 56-89-3 Description: Fine white crystalline powder Specific rotation: -215° ~ -225° Chloride(Cl): NMT 0.05% Ammonium(NH4): NMT 0.02% Sulfate(SO4): NMT 0.02% Iron(Fe): NMT 10 ppm Heavy metals: NMT 20 ppm Lead: NMT 5 ppm Arsenic: NMT 1 ppm Other amino acids: Chromatographically not detectable Loss on drying: NMT 0.20% Residual solvents: NMT 0.10% Assay: 98.5% ~ 101.5% Please contact Jennifer through zbexporting09(at) gmail(dot) com

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