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Vitamin B1 HCl
Name:Vitamin B1 HCl
CAS:67-03-8
MF:C12H17ClN4OS.HCl
The detailed specifications are as below:

Analysis items Specification Result 
Items BP2013 USP36 Colorless clear liquid
Appearance White or almost white,
crystalline powder or
colorless crystals
White or almost white,
Crystalline powder or
Colorless crystals
Almost white
crystalline powder
Identification IR,Characteristic Reaction
and Test of chlorides
IR and Test of chlorides Conform
Assay,% 98.5~101.0% 98.0~102.0% 99.7%
pH 2.7- 3.3 2.7- 3.4 3.0
Absorbance of solution ---------- ≦0.025 0.013
Solubility Freely Soluble in Water, Soluble in Glycerol,
Slightly Soluble in Alcohol
---------- Freely Soluble in
Water,Soluble in
Glycerol,Slightly Soluble in Alcohol
Appearance of solution Clear and not more than Y7 ---------- Clear and not more than Y7
Sulphates,ppm ≦300ppm ---------- <300ppm
Limit of nitrate ---------- No brown ring
is produced
No brown ring is
produced
Heavy metals,ppm ≦20ppm ---------- <20ppm

Analysis items Specification Result 
Items BP2013 USP36 Colorless clear liquid
Related
substances
Any
Impurity,%
≦0.4% ---------- 0.1%
Total,% ≦1.0% ---------- 0.2%
Water,% ≦5.0% ≦5.0% 3.6%
Sulphated ash/
Residue on
ignition,%
≦0.1% ≦0.2% 0.04%
Chromatographic purity,% ---------- ≦1.0% 0.1%
Conclusion This batch of Vitamin B1 HCl meets the requirements of BP2013/USP36