3-Chloro-5,7-dimethyl-2H-indazole CAS 1227268-87-2
| CAS No. | 1227268-87-2 |
| Molecular Formula | C9H9ClN2 |
| Molecular Weight | 180.63 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 180.63 g/mol gives 3-Chloro-5,7-dimethyl-2H-indazole distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
3-Chloro-5,7-dimethyl-2H-indazole (CAS 1227268-87-2), molecular formula C9H9ClN2 and molecular weight 180.63 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C9H9ClN2, 3-Chloro-5,7-dimethyl-2H-indazole contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 180.63 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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-Chloro-5,7-dimethyl-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 | C9H9ClN2 |
| Molecular Weight | 180.63 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 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 |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chloro Standards
- 7-Chloro-4-methyl-1H-indol-5-amine (CAS 1003858-72-7)
- 5-Chloro-4-methyl-2,3-dihydro-1H-inden-1-one (CAS 1008-13-5)
- 3-Chloro-3-phenethyl-3H-diazirine (CAS 104678-37-7)
- 2-Chloro-6-ethyl-5-methylnicotinonitrile (CAS 108244-43-5)
- 2-Chloro-6-isopropylpyridine-3-carbonitrile (CAS 108244-44-6)
- 3-(3-Chloro-2-methylphenyl)prop-2-yn-1-ol (CAS 1093172-97-4)
- 2-Chloro-4,5-dimethyl-1H-benzimidazole (CAS 1093231-04-9)
- 2-Chloro-4-(ethylamino)benzonitrile (CAS 1097793-74-2)
Recommended Standards
- 1-(3-Chlorophenyl)cyclopropanecarbaldehyde (CAS 1213775-28-0)
- 2-(2-Chlorophenyl)cyclobutan-1-one (CAS 1242029-75-9)
- 4-Chloro-N-cyano-N-ethylaniline (CAS 121366-77-6)
- [2-(4-chlorophenyl)ethyl](cyano)amine (CAS 1247372-60-6)
- 3-Methylhex-1-en-3-ol (CAS 4339-05-3)
- Tert-butyl 3-((4-aminobenzyl)amino)pyrrolidine-1-carboxylate hydrochloride (CAS 1266226-12-3)
- Idelalisib Impurity 1 (CAS 870281-86-0)
- 2-(Trifluoromethyl)oxazolo[5,4-b]pyridine (CAS 1368111-33-4)
- 2-(3,5-Dichlorophenyl)benzonitrile (CAS 1352318-57-0)
- (3S)-Piperidine-3-carboxamide (CAS 88495-55-0)
- Cyclopentyl(thiophen-2-yl)methanone (CAS 99186-05-7)
- Octahydropyrrolo[3,4-b]azepin-2(1H)-one (CAS 1824152-13-7)
- 2-(((1,1,1,3,3,3-Hexafluoro-2-(2,3,5,6-tetrafluorophenyl)propan-2-yl)oxy)methyl)oxirane (CAS 28180-40-7)
- Semaglutide impurity 109 (CAS CATO-C4X-2226109)
Why CATO?
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