3-bromo-6-chloro-5-nitro-1H-indazole CAS 1000342-41-5
| CAS No. | 1000342-41-5 |
| Molecular Formula | C7H3BrClN3O2 |
| Molecular Weight | 276.47 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 3-bromo-6-chloro-5-nitro-1H-indazole (C7H3BrClN3O2) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine/bromine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 276.47 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
3-bromo-6-chloro-5-nitro-1H-indazole (CAS 1000342-41-5), molecular formula C7H3BrClN3O2 and molecular weight 276.47 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 3-bromo-6-chloro-5-nitro-1H-indazole 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 | C7H3BrClN3O2 |
| Molecular Weight | 276.47 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, 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.) | 1988 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 3 |
Related bromo Standards
- 4-Bromo-3-chloro-5-nitro-1H-indazole (CAS 1000344-02-4)
- 6-Bromo-8-chloro-2,4-dihydro-1h-3,1-benzoxazine-2,4-dione (CAS 1006619-82-4)
- 8-Bromo-6-chloro-3-nitroimidazo[1,2-a]pyridine (CAS 1072944-56-9)
- 8-Bromo-6-chloroimidazo[1,2-b]pyridazine-3-carboxylic acid (CAS 1177415-91-6)
- 8-Bromo-6-chloro-2H-benzo[d][1,3]oxazine-2,4(1H)-dione (CAS 122588-67-4)
- 3-Bromo-8-chloroimidazo[1,2-a]pyrazine-2-carboxylic acid (CAS 1638760-40-3)
- 6-Bromo-7-chloro-1,4-dihydropyrido[2,3-b]pyrazine-2,3-dione (CAS 185676-55-5)
- 3-Bromo-6-chloro-4-nitro-1H-indazole (CAS 885519-92-6)
Recommended Standards
- Benzalkonium Chloride impurity 8 (CAS 39695-18-6)
- Cholecalciferol Impurity 20 (CAS CATO-C4X-158620)
- Paricalcitol Impurity 26 (CAS CATO-C4X-138726)
- Paricalcitol Impurity 24 (CAS CATO-C4X-138724)
- 4-Cyclopropoxy-6-ethylpyridine-3-sulfonamide (CAS 1243467-03-9)
- (2R)-2-{[(tert-butoxy)carbonyl]amino}non-8-enoic acid (CAS 881683-84-7)
- 5-(2-Chlorophenyl)picolinic acid (CAS 1221403-88-8)
- 3-Iodo-2-methyl-1-(phenylsulfonyl)-7-azaindole (CAS 943324-07-0)
- 2,5-Dimethylthiophene-3-sulfonyl Chloride (CAS 97272-04-3)
- 2-(1-Methyl-1h-indol-5-yl)acetic acid (CAS 98935-61-6)
- 1,1-Bis(4-methoxyphenyl)-2-propyn-1-ol (CAS 101597-25-5)
- N,N-Dibenzylbut-2-enamide (CAS 57625-29-3)
- tert-butyl N-[3-(2-aminoethoxy)propyl]carbamate (CAS 912849-75-3)
- Semaglutide impurity 277 (CAS CATO-C4X-2226277)
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