5-chloro-1H-indazol-4-ol CAS 1638764-61-0
| CAS No. | 1638764-61-0 |
| Molecular Formula | C7H13ClN2O |
| Molecular Weight | 176.64 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 5-chloro-1H-indazol-4-ol 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.
5-chloro-1H-indazol-4-ol (CAS 1638764-61-0), molecular formula C7H13ClN2O and molecular weight 176.64 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amide group, a hydroxyl group, an ether linkage, chlorine substitution, 5-chloro-1H-indazol-4-ol is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 176.64 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
Physical & Chemical Properties
| Molecular Formula | C7H13ClN2O |
| Molecular Weight | 176.64 g/mol |
| 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 | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1993 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related chloro Standards
- 5-Chloro-1H-pyrrolo[2,3-b]pyridin-4-ol (CAS 1015610-47-5)
- 4-Chloro-1H-pyrrolo[2,3-b]pyridin-5-ol (CAS 1020056-82-9)
- (5-Chloro-2-fluorophenyl)(methyl)sulfane (CAS 1071152-05-0)
- 4-chloro-1H-pyrrolo[2,3-b]pyridin-6-ol (CAS 1190321-61-9)
- 2-Chloro-4-fluoro-5-methylbenzenethiol (CAS 1208077-04-6)
- 2-Chloro-N-(1-methylpyrrolidin-3-yl)acetamide (CAS 1247728-15-9)
- 6-chloro-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazine (CAS 1260665-94-8)
- 1-Chloro-3-fluoro-5-(methylsulfanyl)benzene (CAS 1314939-89-3)
Recommended Standards
- n-(2-Chloroethyl)pyrrolidine-1-carboxamide (CAS 1495150-98-5)
- 1-ethyl-5-methyl-pyrazole-3-carbonyl chloride (CAS 1706456-89-4)
- 7-chloro-2,3-dihydrobenzofuran-3-ol (CAS 1482794-07-9)
- 1-Chloro-4-methylnaphthalene (CAS 17075-39-7)
- Ethyl 3-Oxocyclobutanecarboxylate (CAS 87121-89-9)
- 3-methylimidazo[1,2-a]pyridine-6-carboxylic acid (CAS 1248692-31-0)
- Benzyl 2,6-dimethyl-1H-indole-3-carboxylate (CAS 1227267-30-2)
- 4-(2-Bromoethyl)-2-fluoroanisole (CAS 404-89-7)
- 2-Phenyl-1-oxaspiro[2.5]octane (CAS 37545-92-9)
- 2-[(1S)-1-[(1R)-1-[3,5-Bis(trifluoromethyl)phenyl]ethoxy]-2-(4-fluorophenyl)-2-oxoethoxy]acetic Acid Methyl Ester (CAS 419574-29-1)
- (R)-Mevalonolactone (CAS 19115-49-2)
- 3,7-Dimethylimidazo[1,2-a]pyridine (CAS 34165-15-6)
- 3-Chloro-2-(4-methoxybenzyloxy)pyridine (CAS 1033202-56-0)
- Semaglutide impurity 269 (CAS CATO-C4X-2226269)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com