4-Chloro-5-fluoropyridin-3-ol CAS 1393553-75-7
| CAS No. | 1393553-75-7 |
| Molecular Formula | C5H3ClFNO |
| Molecular Weight | 147.53 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 4-Chloro-5-fluoropyridin-3-ol.
4-Chloro-5-fluoropyridin-3-ol (CAS 1393553-75-7), molecular formula C5H3ClFNO and molecular weight 147.53 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C5H3ClFNO, 4-Chloro-5-fluoropyridin-3-ol contains 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 147.53 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.
As a certified reference material (CRM), 4-Chloro-5-fluoropyridin-3-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.
Physical & Chemical Properties
| Molecular Formula | C5H3ClFNO |
| Molecular Weight | 147.53 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 1 |
Related Chloro Standards
- 5-Chloro-2-fluoropyridin-3-ol (CAS 1003711-65-6)
- 2-Chloro-3-fluoro-4-hydroxypyridine (CAS 1184172-46-0)
- 2-Chloro-5-fluoropyridin-4-ol (CAS 1196153-96-4)
- 6-Chloro-4-fluoropyridin-3-ol (CAS 1211530-63-0)
- 3-Chloro-5-fluoro-4-hydroxypyridine (CAS 1214327-70-4)
- 3-Chloro-5-fluoropyridin-2(1H)-one (CAS 1214345-43-3)
- 3-Chloro-5-fluoropyridine 1-oxide (CAS 1221793-68-5)
- 3-Chloro-2-fluoropyridin-4-ol (CAS 1227499-28-6)
Recommended Standards
- 6-Chloro-3-fluoropyridin-2(1H)-one (CAS 1369769-03-8)
- 5-Chloro-4-fluoropyridin-3-ol (CAS 1393562-55-4)
- 4-Chloro-3-Fluoropyridine 1-Oxide (CAS 127108-51-4)
- 2-Chloro-6-fluoropyridin-4-ol (CAS 1807206-99-0)
- 2-Amino-N-(2-amino-2-oxoethyl)-N-(2-oxo-1,2-dihydropyrimidin-4-yl)acetamide (CAS 62102-15-2)
- 2,6-Dibromo-4-methoxyaniline (CAS 95970-05-1)
- N-Methyl-2-(pyrrolidin-3-yl)acetamide hydrochloride (CAS 1609402-95-0)
- cis-1-((4-Fluorophenyl)sulfonyl)octahydropyrrolo[3,4-b]pyrrole (CAS 1218517-81-7)
- 2-fluoro-3-hydroxy-5,5-dimethylcyclohex-2-en-1-one (CAS 109801-21-0)
- 4-Chloro-5-(1-methylhydrazinyl)pyridazin-3(2H)-one (CAS 96017-24-2)
- 2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-5-(cyclopropylmethoxy)benzoicacid (CAS 1033194-63-6)
- (S)-N-Boc-1-(3-bromophenyl)ethylamine (CAS 477312-85-9)
- Ethyl 2-(2-bromopyridin-4-yl)acetate (CAS 1256337-24-2)
- D-[Phe6]-Semaglutide (CAS CATO-C4X-2226213)
Why CATO?
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