3-chloro-1-methyl-7-nitro-indazole CAS 74209-36-2
| CAS No. | 74209-36-2 |
| Molecular Formula | C8H14ClN3O2 |
| Molecular Weight | 219.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 3-chloro-1-methyl-7-nitro-indazole (C8H14ClN3O2) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 219.67 g/mol, it falls into the medium-molecular-weight range. 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).
3-chloro-1-methyl-7-nitro-indazole (CAS 74209-36-2), molecular formula C8H14ClN3O2 and molecular weight 219.67 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C8H14ClN3O2 |
| Molecular Weight | 219.67 g/mol |
| Appearance | 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1978 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
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Recommended Standards
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- rac-1,2-Dilinolenoyl-3-chloropropanediol (CAS 74875-97-1)
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- 3-(3-Chlorophenyl)oxetane (CAS 1044507-51-8)
- 6-(Isopropylamino)-4-(methylamino)-1,3,5-triazin-2(1H)-one (CAS 83656-31-9)
- 4-Bromo-2-Fluorobenzylisocyanide (CAS 728920-03-4)
- Peptide Impurity 70 TFA Salt (CAS CATO-CPTD788570)
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