Vitamin B1 Mono (Thiamine Mononitrate)

CAS number: 532-43-4

Molecular formula: C12H17N5O4S

molecular weight: 327.3595

Chemical structure:

Name of Product
Vitamin B1 Mono/Thiamine Monohydrate
Shelf Life
3 years
Test Items
Specification
Results of Analysis
Appearance
white or almost white crystalline powder or colourless crystalsWhite 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

Ph6.8-7.57.1
Appearance of solutionclear, not more intense than Y7clear, not more intense than Y7
Sulphates
NMT300ppm<300ppm
Limit of nitrate
No brown ringNo brown ring
Heavy Metals
NMT 20ppm<20ppm
Chloride
NMT 600ppm<300ppm
Loss on drying
NMT 1.0%0.3%
Residue on igonitionNMT 0.1%0.04%
Residual Solvents

MethanolNMT 1.0%<0.21%
Ethanol
NMT 1.5%<0.33%

Related substances (Disregard

limit 0.05%)



Any impurity
NMT 0.4%0.07%
Total ImpuritiesNMT 1.0%0.17%
ConclusionThis batch comlies with the specification of BP2015/USP38