4-Chloro-3-fluoropyridine hydrate CAS 1881291-63-9
| CAS No. | 1881291-63-9 |
| Molecular Formula | C5H3ClFN |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Chloro-3-fluoropyridine hydrate (C5H3ClFNH2O) contains an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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-3-fluoropyridine hydrate (CAS 1881291-63-9), molecular formula C5H3ClFNH2O and molecular weight 149.55 g/mol, is a CATO reference standard with documented purity and traceability.
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-3-fluoropyridine hydrate 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 | C5H3ClFN H2O |
| Molecular Weight | 149.55 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 1 |
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Recommended Standards
- (3-(Benzyloxy)-2-chlorophenyl)methanol (CAS 1874468-94-6)
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- 3-(2-Phenoxyethoxy)benzoic acid (CAS 116495-73-9)
- 3-(4-Methoxyphenyl)pyrrolidin-3-ol hydrochloride (CAS 476159-76-9)
- 2,3-dimethyloxolan-3-amine (CAS 1432680-31-3)
- n-(3-Methoxypropyl)-1-propylpiperidin-4-amine (CAS 1042588-63-5)
- 1221153-81-6 (2E)-1-[5-Chloro-1-(propan-2-yl)-1H-pyrrolo[2,3-c]pyridin-3-yl]-3-(dimethylamino)prop-2-en-1-one DTXSID60719909 (CAS 1221153-81-6)
- (2,4-Dihydroxyphenyl)(2-hydroxyphenyl)methanone (CAS 13087-18-8)
- GnRH Associated Peptide (GAP) (1-13), human (CAS 100111-07-7)
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