4-Chloro-5-fluoro-1H-indazole CAS 1420068-88-7
| CAS No. | 1420068-88-7 |
| Molecular Formula | C7H4ClFN2 |
| Molecular Weight | 170.57 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C7H4ClFN2, 4-Chloro-5-fluoro-1H-indazole contains a nitrile group, fluorine/chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 170.57 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
4-Chloro-5-fluoro-1H-indazole (CAS 1420068-88-7), molecular formula C7H4ClFN2 and molecular weight 170.57 g/mol, is a CATO reference standard with documented purity and traceability.
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 manufactures 4-Chloro-5-fluoro-1H-indazole under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C7H4ClFN2 |
| Molecular Weight | 170.57 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 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.) | 1991 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 2 |
Related Chloro Standards
- 3-Chloro-4-fluoro-1H-indazole (CAS 1000340-79-3)
- 7-Chloro-4-fluoro-1H-indazole (CAS 1000341-70-7)
- 4-Chloro-7-fluoro-1H-indazole (CAS 1000341-84-3)
- 2-(6-Chloro-5-fluoropyridin-3-yl)acetonitrile (CAS 1000557-28-7)
- 2-Chloro-6-fluoroimidazo[1,2-a]pyridine (CAS 1019020-11-1)
- 2-Chloro-8-fluoroimidazo[1,2-a]pyridine (CAS 1019021-98-7)
- 3-Chloro-6-fluoroimidazo[1,2-a]pyridine (CAS 1019026-23-3)
- 3-Chloro-8-fluoroimidazo[1,2-a]pyridine (CAS 1019028-15-9)
Recommended Standards
- 7-Chloro-6-fluoro-1H-indazole (CAS 1414870-63-5)
- 4-Chloro-7-fluoropyrazolo[1,5-a]pyridine (CAS 1427382-75-9)
- 4-(Chloromethyl)-6-fluoropicolinonitrile (CAS 1393543-76-4)
- 4-Amino-5-chloro-2-fluorobenzonitrile (CAS 1443253-03-9)
- 2-(3-Bromophenoxy)ethan-1-ol (CAS 79906-55-1)
- [S(R)]-N-[(R)-[2-(Dicyclohexylphosphino)phenyl]phenylmethyl]-2-methyl-2-propanesulfinamide (CAS 2565792-22-3)
- Ethyl 2-fluoro-3-formylbenzoate (CAS 1806576-53-3)
- (3-Chloro-5-(trifluoromethyl)pyridin-2-yl)(3-chlorophenyl)methanone (CAS 1823188-09-5)
- 4-((4-(4-(Tert-butyl)phenoxy)phenyl)amino)-4-oxobutanoic acid (CAS 356089-44-6)
- 7-(Aminomethyl)-3,4-dihydroquinolin-2(1H)-one (CAS 916303-79-2)
- Sulfaperin (CAS 599-88-2)
- 6-Methoxy-N,2-dimethyl-3-benzofurancarboxamide (CAS 638217-07-9)
- tert-Butyl 1-cyclobutyl-3-hydroxypropan-2-ylcarbamate (CAS 816429-99-9)
- Semaglutide impurity 51 (CAS CATO-C4X-222651)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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