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Cocarboxylase tetrahydrate

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

HS Code    2936 22 00    EC number    205-230-7
Molar mass    496.37 g/mol    WGK    1 (slightly polluting substance)
Storage class (VCI)    10-13 Other liquids and solids    CAS number    68684-55-9
Ordering number    Package    Size

5.00111.5000    Plastic bottle    5 kg
Chemical and physical data

Formula Hill    C12H18N4O7P2S * 4 H2O     Solubility in water    55 g/l (25 oC)
Melting point    220 - 225 oC (decomposition)    Molar mass    496.37 g/mol
pH value    2.4 - 3.2 (100 g/l, H2O, 20 oC)          
Safety information

WGK    1 (slightly polluting substance)
Storage and Transport

HS Code    2936 22 00    Storage class (VCI)    10-13 Other liquids and solids
WGK    1 (slightly polluting substance)         
Specification

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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