Isoniazid EP Impurity D CAS 553-53-7
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 553-53-7 |
| Molecular Formula | C6H7N3O |
| Molecular Weight | 137.14 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Isoniazid EP Impurity D (CAS 553-53-7) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C6H7N3O. Molecular weight: 137.14 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C6H7N3O |
| Molecular Weight | 137.14 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 3 |
Related Isoniazid Standards
Recommended Standards
- Phenyl carbamate (CAS 622-46-8)
- N-Methyl-N-nitroso-3-pyridinamine (CAS 69658-91-9)
- 1793AF 5,6-Dihydrofuro[2,3-d]pyrimidin-2-amine 88513-35-3 C6H7N3O (CAS 88513-35-3)
- Irbesartan Impurity 12 (CAS 141745-36-0)
- Venetoclax Impurity 27 (CAS CATO-C4X-249527)
- 1-[(5-Ethylthien-2-yl)methyl]piperazine 4899AE 523981-54-6 C11H18N2S (CAS 523981-54-6)
- 3-(2-Bromophenyl)-6-chloropyridazine (CAS 143569-57-7)
- Ethyl 4-cyanopiperidine-1-carboxylate (CAS 182808-28-2)
- 3-Amino-2-(piperidin-1-yl)isonicotinic acid (CAS 1478268-02-8)
- Tirzepatide Impurity 16 (CAS CATO-C4X-324016)
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