6-Chloro-1H-indazol-7-ol CAS 1638769-08-0
| CAS No. | 1638769-08-0 |
| Molecular Formula | C7H5ClN2O |
| Molecular Weight | 168.58 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 6-Chloro-1H-indazol-7-ol.
6-Chloro-1H-indazol-7-ol (CAS 1638769-08-0), molecular formula C7H5ClN2O and molecular weight 168.58 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 6-Chloro-1H-indazol-7-ol (C7H5ClN2O) contains an amide group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 168.58 g/mol, it falls into the medium-molecular-weight range. 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.
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 | C7H5ClN2O |
| Molecular Weight | 168.58 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.) | 1993 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chloro Standards
- 6-Chloro-1H-pyrrolo[3,2-c]pyridin-2(3H)-one (CAS 1000342-80-2)
- 4-Chloro-2-methoxypyridine-3-carbonitrile (CAS 1008451-56-6)
- 6-Chloro-2-methyl-9H-purine (CAS 100859-35-6)
- 3-chloro-6-methyl-[1,2,4]triazolo[4,3-a]pyrimidine (CAS 1019033-24-9)
- 2-Chloro-8-methyl-9H-purine (CAS 1023813-16-2)
- 2-Chloro-5-methylfuro[2,3-d]pyrimidine (CAS 1030377-49-1)
- 7-chloro-5-methyl-1H-pyrazolo[4,3-d]pyrimidine (CAS 1055057-37-8)
- 2-Chloro-6-hydrazinylpyridine-4-carbonitrile (CAS 107445-56-7)
Recommended Standards
- 6-Chloro-1H-pyrrolo[2,3-b]pyridin-4-ol (CAS 1638763-87-7)
- 3-Amino-6-chloroimidazo[1,2-b]pyridazine (CAS 166176-45-0)
- 4-Formylbenzoyl chloride (CAS 16173-52-7)
- 2-Chloro-6-methyl-9H-purine (CAS 1681-19-2)
- cis-3-((4-Methoxybenzyl)oxy)cyclobutanol (CAS 2589698-01-9)
- 5-(Pyridin-2-yl)isoxazole-3-carbonyl chloride (CAS 88958-32-1)
- 2,2,2-TRIFLUORO-N-(PIPERIDIN-4-YL) ACETAMIDE HCL (CAS 59185-28-3)
- methyl 1-ethoxycyclobutane-1-carboxylate (CAS 2031269-38-0)
- 2-(1-((5-Chloro-1,2,3-thiadiazol-4-yl)methyl)piperidin-4-yl)acetamide (CAS 1222983-01-8)
- (R)-2-(4-(((Trifluoromethyl)sulfonyl)oxy)phenyl)propanoic acid (CAS 533931-60-1)
- 5-Bromo-2-cyclopropyloxazolo[4,5-b]pyridine (CAS 1784947-23-4)
- Hexadecanenitrile (CAS 629-79-8)
- 6-[(Pyridin-3-ylmethyl)-carbamoyl]-cyclohex-3-enecarboxylic acid (CAS 545349-20-0)
- Myelin Basic Protein (85-99) Peptide Antagonist (CAS 444305-16-2)
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