輔羧酶脫羧輔酶
Cocarboxylase tetrahydrate

Synonyms Thiaminium diphosphoric acid ester tetrahydrate
Formula Hill C12H18N4O7P2S * 4 H2O
At a glance

Assay (HPLC, calc.on anhydrous substance) 96.0 - 101.0 %  
Identity (IR-spectrum) passes test  
pH-value (10 %; water) 2.4 - 3.2  
Chloride (Cl) ? 0.01 %   
Free phosphate (PO4)  ? 1.0 %   
Heavy metals (as Pb) ? 0.001 %   
As (Arsenic) ? 0.0003 %   
Thiaminmonophosphoricacidester (HPLC) ? 1.5 %   
Thiamin (HPLC) ? 0.1 %   
Related substances (HPLC) ? 1.5 %   
Water 14.0 - 16.5 %  
Endotoxins < 12 I.U./g  
Residual solvents (Ph. Eur./USP/ICH) class 3 ? 0.2 %   
Other residual solvents (Ph. Eur./USP/ICH) excluded by manufacturing process

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