Dihydralazine EP Impurity C CAS 86-54-4
| CAS No. | 86-54-4 |
| Molecular Formula | C8H8N4 |
| Molecular Weight | 160.18 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C8H8N4, Dihydralazine EP Impurity C contains a nitrogen-containing heterocyclic scaffold, a nitrile group; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 160.18 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies Dihydralazine EP Impurity C (CAS 86-54-4), a pharmacopoeial impurity reference standard (molecular formula C8H8N4, MW 160.18 g/mol) used for the identification and quantification of trace impurities in APIs.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C8H8N4 |
| Molecular Weight | 160.18 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 4 |
Related Dihydralazine Standards
- Dihydralazine EP Impurity A (CAS 649765-80-0)
- Dihydralazine Mesylate - API Standards (CAS 69467-96-5)
- Dihydralazine Hydrochloride EP Impurity C (CAS 304-20-1)
- Dihydralazine EP Impurity A HCl (CAS 649765-80-0 (free base))
- Dihydralazine Impurity 6 (CAS CATO-C4X-20786)
- Dihydralazine Impurity 5 (CAS CATO-C4X-20785)
Recommended Standards
- Cinnoline-3,4-diamine (CAS 64803-94-7)
- N-Methylpyrido[3,2-c]pyridazin-4-amine (CAS 65847-50-9)
- 7-Methylbenzo[e][1,2,4]triazin-3-amine (CAS 27238-39-7)
- N-phenyl-1H-1,2,4-triazol-5-amine (CAS 2433-53-6)
- Brivaracetam impurity 106 (CAS CATO-C4X-2007106)
- Tadalafil EP Impurity D (CAS CATO-C4X-10874)
- Cinacalcet Impurity 99 (CAS CATO-C4X-105999)
- {5-[3-(3-fluorophenyl)-1,2-oxazol-5-yl]pentyl}(methyl)amine (CAS 1221723-61-0)
- 4-chloro-1-(oxan-2-yl)-1H-pyrazolo[3,4-d]pyrimidine (CAS 91446-15-0)
- Maribavir Impurity 8 (CAS CATO-C4X-30078)
- 2-(2-Methylphenoxy)ethanimidamide hydrochloride (CAS 1129246-89-4)
- methyl 1-(2,2,3,3-tetrafluoropropyl)-1H-pyrazole-5-carboxylate (CAS 1172752-18-9)
- 4-Formyl-indole-1-carboxylic acid butylamide (CAS 918523-84-9)
- D-β-Asp9-Tirzepatide (CAS CATO-CPTD788932)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com