1082040-15-0 4-Chloro-3-iodo-5-nitro (1H)indazole W-1274 CAS 1082040-15-0
| CAS No. | 1082040-15-0 |
| Molecular Formula | C7H3ClIN3O2 |
| Molecular Weight | 323.48 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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 supplies 1082040-15-0 4-Chloro-3-iodo-5-nitro (1H)indazole W-1274 (CAS 1082040-15-0), a certified reference material (molecular formula C7H3ClIN3O2, MW 323.48 g/mol) for analytical method development and quality control.
1082040-15-0 4-Chloro-3-iodo-5-nitro (1H)indazole W-1274 (C7H3ClIN3O2) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine/iodine substitution, an aromatic ring system. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C7H3ClIN3O2 |
| Molecular Weight | 323.48 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 |
| 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 | Cl/I-containing |
| Nitrogen Atoms | 3 |
Related Chloro Standards
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Recommended Standards
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