Isoniazid Impurity 1 CAS 25197-87-9
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 25197-87-9 |
| Molecular Formula | C18H27N3O11 |
| Molecular Weight | 461.42 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Isoniazid Impurity 1 (CAS 25197-87-9) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C18H27N3O11. Molecular weight: 461.42 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C18H27N3O11 |
| Molecular Weight | 461.42 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1964 |
| Nitrogen Atoms | 3 |
Related Isoniazid Standards
Recommended Standards
- 4-Azidophlorizin (CAS 79541-46-1)
- 1-(2,4-Difluorophenyl)-7-(3,5-dimethylpiperazin-1-yl)-6-fluoro-8-methoxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (CAS 182869-17-6)
- β-D-tetraacetylgalactopyranoside-PEG1-N3 (CAS 153252-36-9)
- Dronedarone Impurity 41 (CAS 94107-99-0)
- Crisaborole Impurity 16 (CAS 906673-43-6)
- N-(3-(trifluoromethyl)phenyl)benzofuran-2-carboxamide (CAS 302583-11-5)
- 3-(3,5-Dimethyl-1H-pyrazol-1-yl)-6-(4-phenylpiperazin-1-yl)-1,2,4,5-tetrazine (CAS 318239-47-3)
- 2-(6-Bromo-2-oxo-2,3-dihydroimidazo[1,2-a]pyridin-3-yl)acetic acid (CAS 653599-23-6)
- 2-(2-Bromo-6-nitrophenyl)acetic Acid (CAS 37777-74-5)
- Tirzepatide Impurity 37 (CAS CATO-C4X-324037)
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