Bifonazole EP Impurity D Chloride CAS 66600-13-3
| CAS No. | 66600-13-3 |
| Molecular Formula | C41H33N2 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 589.18 g/mol gives Bifonazole EP Impurity D Chloride distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Bifonazole EP Impurity D Chloride (CAS 66600-13-3) is a certified pharmaceutical impurity reference standard with the molecular formula C41H33N2Cl and a molecular weight of 589.18 g/mol.
Structurally, Bifonazole EP Impurity D Chloride (C41H33N2Cl) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 26.0, corresponding to approximately 26 ring(s) or double-bond equivalent(s). With a molecular weight of 589.18 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
As a certified reference material (CRM), Bifonazole EP Impurity D Chloride meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C41H33N2 Cl |
| Molecular Weight | 589.18 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | >90% |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 26.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Bifonazole Standards
- Bifonazole EP Impurity E(Mixture of Diastereomers) (CAS 2469554-07-0)
- Bifonazole EP Impurity C(Clotrimazole EP Impurity D) (CAS 288-32-4)
- Bifonazole (CAS 60628-96-8)
- Bifonazole impurity 11 (CAS 73842-48-5)
- Bifonazole Impurity 9 (CAS 7515-73-3)
- Bifonazole EP Impurity A (CAS 7598-80-3)
- Bifonazole impurity 20 (CAS 790661-19-7)
- Bifonazole Impurity 7 (CAS 91487-87-5)
Recommended Standards
- Tenofovir Alafenamide Impurity 36 (CAS CATO-C4X-179736)
- Cefpodoxime Impurity 63 (CAS CATO-C4X-157963)
- Teprenone Impurity 6 (CAS 70851-60-4)
- 3-(Acridin-9-ylamino)-5-((ethoxycarbonyl)amino)benzoic acid (CAS 655238-62-3)
- 4-(4,6,8-Trimethylimidazo[1,5-a]pyrimidin-2-yl)morpholine (CAS 88896-76-8)
- (1R,3S)-3-(2-(4-chlorophenyl)-2-oxoethyl)cyclopentane-1-carboxylic acid (CAS 733740-36-8)
- Z-Ala-Glu-OH (C-1075.0001) (CAS 102601-36-5)
- Haloperidol Decanoate (CAS 74050-97-8)
- (E)-1,1,1-trifluoro-4-((1-methylpiperidin-4-yl)amino)pent-3-en-2-one (CAS 939762-11-5)
- Tirzepatide Impurity 44 (CAS CATO-C4X-324044)
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