Vitamin B1 Hcl (Thiamine Hcl)

CAS number: 67-03-8

Molecular formula: C12H17ClN4OS.HCl

molecular weight: 337.26712

Chemical structure:

Name of ProductVitamin B1 Hcl/Thiamine Hydrochloride
Shelf Life
3 years
Test Items
Specification
Results of Analysis
Appearance
white or almost white crystalline powder or colourless crystals
White cyrstalline powder
Identification
(1) should be positive reaction(1) positive reaction

(2) Consistent with the reference IR spectra

(2) Consistent with the

reference IR spectra

Appearance of solutionclear, not more intense than Y7clear, not more intense than Y7
Sulphates
NMT300ppm<300ppm
Limit of nitrate
No brown ring
No brown ring
Heavy MetalsNMT 20ppm
<20ppm
WaterNMT 5.0%2.1%
Residue on igonitionNMT 0.1%0.04%
Absorbance of solutionNMT 0.0250.025
Residual Solvents

MethanolNMT 0.3%<0.3%
Ethanol
NMT 0.5%<0.5%
Related substances (Disregard limit 0.05%)


Any impurity
NMT 0.4%0.07%
Total Impurities
NMT 1.0%0.17%
Conclusion
This batch comlies with the specification of BP2015/USP38.