4-Chloro-2,3,5,6-tetrafluoropyridine CAS 52026-98-9
| CAS No. | 52026-98-9 |
| Molecular Formula | C5ClF4N |
| Molecular Weight | 185.51 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-2,3,5,6-tetrafluoropyridine.
4-Chloro-2,3,5,6-tetrafluoropyridine (CAS 52026-98-9), molecular formula C5ClF4N and molecular weight 185.51 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4-Chloro-2,3,5,6-tetrafluoropyridine (C5ClF4N) contains a nitrile group, fluorine/chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 185.51 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.
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 4-Chloro-2,3,5,6-tetrafluoropyridine 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 | C5ClF4N |
| Molecular Weight | 185.51 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 methanol, acetonitrile, DMSO |
| 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.) | 1971 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 1 |
Related Chloro Standards
- 3-Chloro-2,4,5,6-tetrafluoropyridine (CAS 1735-84-8)
- 2-Chloro-3,4,5,6-tetrafluoropyridine (CAS 54774-81-1)
- 5-chloro-1-methyl-3-(trifluoromethyl)-1H-1,2,4-triazole (CAS 114108-83-7)
- 3-Chloro-5-(2,2,2-trifluoroethyl)-4h-1,2,4-triazole (CAS 1340078-75-2)
- 3-Chloro-5-(trifluoromethyl)-1H-pyrazol-4-amine (CAS 2450343-55-0)
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Recommended Standards
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- Elagolix Impurity 19 (CAS 927-58-2)
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- N-(4-Acetamidophenyl)-2-oxo-1-(prop-2-en-1-yl)-1,2-dihydropyridine-3-carboxamide (CAS 339027-53-1)
- 4-(4-Nitrobenzyl)morpholine (CAS 6425-46-3)
- N-[3-(azepane-1-sulfonyl)phenyl]-2-chloroacetamide (CAS 568544-02-5)
- 4-(tert-Butyl)-N-(4-(tert-butyl)phenyl)-N-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)aniline (CAS 935480-19-6)
- 6-(4-Fluorophenyl)-2-methylpyrimidine-4-carbonitrile (CAS 1256638-70-6)
- Methyl (2E)-3-[(4-ethylphenyl)amino]-2-(4-fluorobenzenesulfonyl)prop-2-enoate (CAS 1327196-84-8)
- n-(7-Methyloctyl)tetrahydrothiophen-3-amine (CAS 1041555-82-1)
- 2-Chloro-3-(2-chlorocyclopent-1-en-1-yl)quinoxaline (CAS 37030-68-5)
- Prolactin-Releasing Peptide (12-31) (human) (CAS 235433-36-0)
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