3-Chloro-5-nitro-2-(4-nitrophenyl)-2H-indazole CAS 88279-21-4
| CAS No. | 88279-21-4 |
| Molecular Formula | C13H7ClN4O4 |
| Molecular Weight | 318.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
3-Chloro-5-nitro-2-(4-nitrophenyl)-2H-indazole (CAS 88279-21-4) is a high-purity analytical reference standard with the molecular formula C13H7ClN4O4 and a molecular weight of 318.67 g/mol.
Structurally, 3-Chloro-5-nitro-2-(4-nitrophenyl)-2H-indazole (C13H7ClN4O4) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 318.67 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).
As a certified reference material (CRM), 3-Chloro-5-nitro-2-(4-nitrophenyl)-2H-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 | C13H7ClN4O4 |
| Molecular Weight | 318.67 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related Chloro Standards
- 2-(2-Chloro-phenyl)-5-trifluoromethyl-2H-pyrazole-3-carboxylic acid ethyl ester (CAS 1033586-26-3)
- 1-{1-[3-Chloro-5-(trifluoromethyl)-2-pyridinyl]-2-methyl-1H-imidazol-4-yl}-1-ethanone oxime (CAS 251096-48-7)
- 2-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)-N-(furan-2-ylmethyl)acetamide (CAS 691870-10-7)
- 5-Chloro-2-(4-methoxybenzyl)-4-(trifluoromethyl)pyridazin-3(2H)-one (CAS 2381044-50-2)
- 6-Chloro-2-(3-(trifluoromethyl)phenyl)tetrahydro-1H-pyrrolo[1,2-c]imidazole-1,3(2H)-dione (CAS 318959-11-4)
- 6-Chloro-2-(4-methoxybenzyl)-4-(trifluoromethyl)pyridazin-3(2H)-one (CAS 2869830-81-7)
- Ethyl 1-(3-chloro-5-(trifluoromethyl)pyridin-2-yl)-1H-pyrrole-2-carboxylate (CAS 321430-87-9)
- N-(3-Chloro-2-fluorophenyl)-6-nitroquinazolin-4-amine (CAS 1290545-22-0)
Recommended Standards
- N1,N1-dimethyl-3,5-di(trifluoromethyl)benzene-1-carbohydrazonoyl chloride (CAS 286009-02-7)
- Ethyl 1-(2-chlorophenyl)-5-(trifluoromethyl)-1H-pyrazole-4-carboxylate (CAS 1020237-74-4)
- Methyl 5-chloro-2-(trifluoromethylsulfonyloxy)benzoate (CAS 494210-98-9)
- Methyl 5-(chlorosulfonyl)-2-(trifluoromethoxy)benzoate (CAS 2137562-31-1)
- 1-Boc-4-chloro-3-iodo-1H-indole (CAS 406170-08-9)
- n-(Sec-butyl)-3,4-difluoroaniline (CAS 1019495-12-5)
- (E)-N-(2-Amino-5-fluorophenyl)-4-[[3-(3-pyridyl)acrylamido]methyl]benzamide (CAS 1883690-47-8)
- Cenobamate Impurity 52 (CAS CATO-C4X-241652)
- 7,7-Dimethyl-2-(phenylamino)-7,8-dihydroquinazolin-5(6H)-one (CAS 925015-54-9)
- N-(3-Chlorobenzyl)-2,3-dimethylaniline (CAS 1024246-91-0)
- 1-(4-Aminophenyl)-3-methylurea (CAS 111087-13-9)
- 2-(Chloromethyl)-3-nitro-5-(trifluoromethyl)pyridine (CAS 1227574-03-9)
- Furan-2-yl(5-methylspiro[indoline-3,4'-piperidin]-1-yl)methanone (CAS 1422133-09-2)
- a2,3-Sialylglycopeptide (CAS 189035-43-6)
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