5,7-Dichloro-3-iodo-1H-indazole CAS 885271-35-2
| CAS No. | 885271-35-2 |
| Molecular Formula | C7H3Cl2IN2 |
| Molecular Weight | 312.92 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 5,7-Dichloro-3-iodo-1H-indazole.
5,7-Dichloro-3-iodo-1H-indazole (CAS 885271-35-2), molecular formula C7H3Cl2IN2 and molecular weight 312.92 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 5,7-Dichloro-3-iodo-1H-indazole (C7H3Cl2IN2) contains a nitrile group, chlorine/iodine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 312.92 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures 5,7-Dichloro-3-iodo-1H-indazole 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 | C7H3Cl2IN2 |
| Molecular Weight | 312.92 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl/I-containing |
| Nitrogen Atoms | 2 |
Related Dichloro Standards
- 6,8-Dichloro-3-iodoimidazo[1,2-a]pyridine (CAS 1033463-27-2)
- 5,6-Dichloro-3-iodo-1H-indazole (CAS 1426421-76-2)
- 4,6-Dichloro-3-iodo-1H-pyrrolo[3,2-c]pyridine (CAS 1956327-79-9)
- 4,5-Dichloro-3-iodo-1H-indazole (CAS 2586127-25-3)
- 4,6-Dichloro-3-iodo-1H-indazole (CAS 885519-60-8)
- 4,6-Dichloro-3-iodo-1H-pyrrolo[2,3-b]pyridine (CAS 2090335-26-3)
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