5-Iodo-7-nitro-1H-indazole CAS 1167056-40-7
| CAS No. | 1167056-40-7 |
| Molecular Formula | C7H4IN3O2 |
| Molecular Weight | 289.03 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 289.03 g/mol gives 5-Iodo-7-nitro-1H-indazole distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
5-Iodo-7-nitro-1H-indazole (CAS 1167056-40-7), molecular formula C7H4IN3O2 and molecular weight 289.03 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 5-Iodo-7-nitro-1H-indazole (C7H4IN3O2) is characterized by an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, iodine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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-Iodo-7-nitro-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 | C7H4IN3O2 |
| Molecular Weight | 289.03 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | I-containing |
| Nitrogen Atoms | 3 |
Related Iodo Standards
- 8-Iodo-2H-benzo[d][1,3]oxazine-2,4(1H)-dione (CAS 115081-93-1)
- 7-Iodo-1H-benzo[d][1,3]oxazine-2,4-dione (CAS 115081-94-2)
- 6-Iodo-2H-3,1-benzoxazine-2,4(1H)-dione (CAS 116027-10-2)
- 3-Iodo-4-nitro-1H-pyrrolo[2,3-c]pyridine (CAS 1190309-90-0)
- 3-Iodo-7-nitro-1H-pyrrolo[3,2-b]pyridine (CAS 1190313-45-1)
- 3-Iodo-6-nitro-1H-pyrrolo[3,2-b]pyridine (CAS 1190313-51-9)
- 3-Iodo-5-nitro-1H-pyrrolo[2,3-b]pyridine (CAS 1190321-00-6)
- 7-Iodo-5-nitro-1H-indazole (CAS 1208228-60-7)
Recommended Standards
- 2-Bromo-1,4-bis(difluoromethoxy)benzene (CAS 885266-93-3)
- 1-Bromo-3-fluoro-2-methoxy-4-(trifluoromethoxy)benzene (CAS 2167614-08-4)
- 5-Iodo-6-(trifluoromethyl)pyridazin-3-amine (CAS 2839748-56-8)
- 6-Iodoimidazo[1,2-b]pyridazine-2-carboxylic acid (CAS 1216380-53-8)
- (1S,3R,4S,5R)-1-(((E)-3-(3,4-Dihydroxyphenyl)acryloyl)oxy)-3,4,5-trihydroxycyclohexane-1-carboxylic acid (CAS 928005-87-2)
- (+)-(1-Oxyl-2,2,5,5-tetramethylpyrrolidin-3-yl)methyl Methanethiosulfonate (CAS 681034-14-0)
- Ethyl 3-(((4-methoxyphenyl)amino)methyl)-1H-1,2,4-triazole-5-carboxylate (CAS 1416347-60-8)
- N-Ethyl-N-methyl-3-(pyrrolidin-3-yl)benzamidehydrochloride (CAS 1223748-27-3)
- 3-Methyl-4H-pyrimido[2,1-c][1,2,4]triazine (CAS 744147-53-3)
- tert-Butyl 5-bromo-3-chloro-1H-indazole-1-carboxylate (CAS 929617-36-7)
- 2-(Piperidin-4-yl)-1H-imidazo[4,5-b]pyridine (CAS 578709-10-1)
- 8-(3-Nitrobenzyl)-2,5-dioxa-8-azaspiro[3.4]Octane (CAS 1556097-35-8)
- 1-(5-Chloro-2H-indazol-2-yl)ethan-1-one (CAS 98083-44-4)
- [D-His]-Semaglutide B (x TFA Salt) (CAS CATO-C4X-2226117)
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