Chemische Werke Hommel GmbH & Co. KG  

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Specification

Concerning Product:
Article number 532434ALR
Trade name / designation / denomination Thiamin mononitrat (Vitamin B1 mono)
CAS number 532-43-4
Other names / synonyms•2-[3-[(4-amino-2-methyl-5-pyrimidinyl)methyl]-4-methyl-5-thiazol-3-iumyl]ethanol nitrate; •Thiamine mononitrate; •Vitamin B1 mononitrate; •thiamine nitrate;
EC number208-537-4
Customs tariff number / CN code / TARIC29362200
Molecular weight [g / mol]327.35948
FormulaC12H17N5O4S


Parameter Test Method Specification Unit

Organoleptic test
Appearance of solution The solution is clear and not more intensely coloured than reference solution Y7
Appearance White or almost white crystalline powder or colorless crystals

Physical parameter
Loss on drying NMT ≤ 5,0 %
pH value 2,7  –  3,4
Solubility Freely soluble in water,soluble in glycerol, slightly soluble in alcohol, practically insoluble in heptane

Identity
Assay on anhydrous basis 98,0  –  102,0 %
Identification Meet the Requirement
Melting Point (identity) about 248, with decomposition °C

Impurities
Residue on ignition NMT ≤ 0,2 %
Nitrates No brown ring is produced at the junction of the two layers
Sulphates (SO4) NMT ≤ 300 ppm
Related substances Impurity A: ≤ 0,15 %
Related substances Impurity B: ≤ 0,3 %
Related substances Impurity C: ≤ 0,15 %
Related substances NMT Total impurities ≤ 0,5 %
Related substances NMT Unspecified impurities (for each impurity) ≤ 0,1 %

Elemental Impurities
Arsenic (As) ≤ 2,0 mg/kg
Lead (Pb) ≤ 2,0 mg/kg

Supplemental information:

Shelf life: 36 month

Storage conditions: Packed in paper-drums and two plastic-bags inside, 25kg/Drum. Keep in cool & dry place. Stay away from strong light and heat.


Chemische Werke Hommel GmbH & Co.KG
This document was generated electronically and is valid without signature.
Waltrop, 13. May. 2020
We only confirm that we took over the data from our supplier accordingly. Despite careful working, errors in the takeover are not totally excluded. Some or all parts off the document may be translated due to our best knowledge from the original to give a better understanding. If you have any questions about specific details, please call us directly. Unless otherwise marked, these data do not originate from us and have not been tested by us on the correctness. The above information corresponds to the present state of our knowledge and is intended as a general description of our products and their possible applications. We make no warranties, expressed or implied, as to the information's accuracy, adequacy, sufficiency or freedom from defect and assumes no liability in connection with any use of this information. Any user of this product is responsible for determining the suitability of our products for its particular application. The foregoing information does not absolve the buyer of its own tests. Observing existing laws and regulations, is the responsibility of the buyer of our product. Nothing included in this information waives any of our General Terms and Conditions of Sale, which control unless it agrees other in writing. Any existing intellectual/industrial property rights must be observed. Due to possible changes in our products and applicable national and international regulations and laws, the status of our products could change. Material Safety Data Sheets providing safety precautions, that should be observed when handling or storing our products, are available upon request and are provided in compliance with applicable law. The user should obtain and review the applicable Material Safety Data Sheet information before handling any of these products. For additional information, please contact us.


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