1-(5-Chloro-2-fluorobenzyl)-1H-pyrazol-4-ol CAS 1691665-80-1
| CAS No. | 1691665-80-1 |
| Molecular Formula | C10H8ClFN2O |
| Molecular Weight | 226.63 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 1-(5-Chloro-2-fluorobenzyl)-1H-pyrazol-4-ol.
1-(5-Chloro-2-fluorobenzyl)-1H-pyrazol-4-ol (CAS 1691665-80-1) is a high-purity analytical reference standard with the molecular formula C10H8ClFN2O and a molecular weight of 226.63 g/mol.
Based on its molecular formula C10H8ClFN2O, 1-(5-Chloro-2-fluorobenzyl)-1H-pyrazol-4-ol contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 226.63 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 1-(5-Chloro-2-fluorobenzyl)-1H-pyrazol-4-ol 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 | C10H8ClFN2O |
| Molecular Weight | 226.63 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 2 |
Related Chloro Standards
- 3-Chloro-2,4-difluorophenylmethylsulfone (CAS 1084334-10-0)
- 6-Chloro-2,3-difluorophenylmethylsulfone (CAS 1208075-92-6)
- 4-Chloro-2,6-difluorophenylmethylsulfone (CAS 1208076-08-7)
- 3-Chloro-2,6-difluorophenylmethylsulfone (CAS 1208077-29-5)
- (4-Chloro-3-fluorophenyl)(furan-3-yl)methanol (CAS 1341327-48-7)
- (3-Chloro-4-fluorofuran-2-yl)(phenyl)methanol (CAS 1341977-27-2)
- (3-Chloro-4-fluorophenyl)(furan-3-yl)methanol (CAS 1343960-81-5)
- (4-Chloro-3-fluorofuran-2-yl)(phenyl)methanol (CAS 1344219-13-1)
Recommended Standards
- (3,5-Difluorophenyl)methanesulfonyl chloride (CAS 163295-74-7)
- 1-(4-Chloro-3-fluorobenzyl)-1H-pyrazol-4-ol (CAS 1696437-91-8)
- (3,4-Difluorophenyl)methanesulfonyl chloride (CAS 163295-73-6)
- 1-(3-Chloro-4-fluorobenzyl)-1H-pyrazol-4-ol (CAS 1696490-28-4)
- 3-(Imidazo[1,2-a]pyridin-2-yl)benzonitrile (CAS 855194-39-7)
- Allyl 4-((methylamino)methyl)piperidine-1-carboxylate (CAS 886365-58-8)
- 1,2,2-Trimethylcyclopropan-1-amine (CAS 109296-39-1)
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- Sodium 7-chloro-8-fluoro-5-isopropoxy-2-(methoxycarbonyl)-1,6-naphthyridin-4-olate (CAS 2763160-61-6)
- (3S,5S)-1-benzyl-5-(hydroxymethyl)pyrrolidin-3-ol (CAS 635299-92-2)
- Methyl 5-methyl-3-(prop-2-yn-1-yloxy)thiophene-2-carboxylate (CAS 1774902-38-3)
- 3-(3-([1,1'-Biphenyl]-4-yl)-2-oxopropyl)quinazolin-4(3H)-one (CAS 134563-06-7)
- Neuropeptide Y (free acid) (human, rat) trifluoroacetate salt (CAS 99575-89-0)
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