Thiamine nitrate
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Specifications
Thiamine nitrate
English Name: Thiamine Nitrate
Chemical name: nitric acid 4- methyl -3-[(2- methyl -4- amino -5- pyrimidinyl) methyl]-5- (2- hydroxyl ethyl) thiazole
Other names: vitamin B1
CAS number: 532-43-4
Molecular formula: C12H17N5O4S
Molecular weight: 327.37
The page number: 2000 two edition 849
C12H17N5O4S 327.37
Content: 99%
Features:
This product is white or white powder or crystalline powder; slight special smell.
This product is slightly soluble in water (1g/35mL), slightly soluble in ethanol, methanol or chloroform.
Identify:
(1) take this product about 5mg, addition of sodium hydroxide solution 2.5ml dissolved, add potassium ferricyanide solution 0.5
Ml 5ml and n-butanol, strong shake for 2 minutes, placed, so that stratification, alcohol layer show strong blue fluorescence; and
Acid to the acidic, fluorescence disappears; add alkali alkalize, fluorescence and show.
(2) take this product is about 10mg, a test tube, add 1ml of water so that dissolved, add an equal amount of sulfuric acid, pay attention to mix, put cold
After the addition of ferrous sulfate solution along the tube wall, the two liquid layer, interface was brown.
(3) take this product about 10mg, add 10ml of water, dissolving, adding sulphuric acid and copper (or copper scrap), heating, which happened
Steam red brown.
(4) the goods should be light absorption pattern contrast pattern of (spectrum set of 476 plans) consistent.
Check
The pH to take this product 0.20g, add 10ml of water dissolved, according to the determination of (Appendix VI H), pH
Value should be 6 ~ 7.5. The clarity and color of solution to take this product 1.0g, add new boiled cold water dissolved in 50ml,
The solution should be clear and colorless; such as color, and Yellow No. 1 standard color solution (Appendix A first law) comparison, not deeper.
Chloride to take this product 0.10g, to check (Appendix VIII A), made with standard solution of sodium chloride 6.0mL
The control liquid, not more concentrated (0.06%).
Loss on drying take this product, at a temperature of 105 DEG C dried to constant weight loss weight shall not exceed 1% (Appendix VIII L).
Residue on ignition shall not exceed 0.1% (Appendix VIII N).
Determination of content
Take this product about 0.14g, accurately weighed, adding anhydrous formic acid 5ml dissolved, add acetic anhydride 70ml,
As the potentiometric titration (Appendix VII A), with perchloric acid titration solution (0.1mol/L) titration, and the titration node
Pharmaceutical grade
- Country: China (Mainland)
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- Market:
- Founded Year:2010
- Address:No.496,Zhongshan Road, Wuhan, Hubei, China
- Contact:Cassie Lee
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