N,3-bis(4-chlorophenyl)-4-oxo-3,4-dihydrophthalazine-1-carboxamide CAS 86671-85-4
| CAS No. | 86671-85-4 |
| Molecular Formula | C21H13Cl2N3O2 |
| Molecular Weight | 410.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including N,3-bis(4-chlorophenyl)-4-oxo-3,4-dihydrophthalazine-1-carboxamide.
N,3-bis(4-chlorophenyl)-4-oxo-3,4-dihydrophthalazine-1-carboxamide (CAS 86671-85-4) is a high-purity analytical reference standard with the molecular formula C21H13Cl2N3O2 and a molecular weight of 410.25 g/mol.
Structurally, N,3-bis(4-chlorophenyl)-4-oxo-3,4-dihydrophthalazine-1-carboxamide (C21H13Cl2N3O2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 16.0, corresponding to approximately 16 ring(s) or double-bond equivalent(s). With a molecular weight of 410.25 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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures N,3-bis(4-chlorophenyl)-4-oxo-3,4-dihydrophthalazine-1-carboxamide under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C21H13Cl2N3O2 |
| Molecular Weight | 410.25 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1981 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Recommended Standards
- Methyl 4-[4-(3,4-dichlorophenyl)piperazin-1-yl]-3-nitrobenzoate (CAS 478246-53-6)
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- 5-(3,4-Dichlorophenyl)-4-(furan-2-carbonyl)-3-hydroxy-1-(3-methoxypropyl)-1H-pyrrol-2(5H)-one (CAS 609797-08-2)
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- Semaglutide impurity 59 (CAS CATO-C4X-222659)
Why CATO?
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