3,5-Dichloro-2,6-difluoropyridine CAS 698-51-1
| CAS No. | 698-51-1 |
| Molecular Formula | C5HCl2F2N |
| Molecular Weight | 183.97 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 3,5-Dichloro-2,6-difluoropyridine 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.
3,5-Dichloro-2,6-difluoropyridine (CAS 698-51-1) is a high-purity analytical reference standard with the molecular formula C5HCl2F2N and a molecular weight of 183.97 g/mol.
Structurally, 3,5-Dichloro-2,6-difluoropyridine (C5HCl2F2N) 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 183.97 g/mol, it falls into the medium-molecular-weight range. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C5HCl2F2N |
| Molecular Weight | 183.97 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.) | 1957 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 1 |
Related Dichloro Standards
- 3,4-Dichloro-2,6-difluoropyridine (CAS 52208-53-4)
- 3,5-Dichloro-2,4-difluoropyridine (CAS 54929-26-9)
- 3,5-dichloro-6-methyl-1,4-oxazin-2-one (CAS 125849-94-7)
- 2,2-Dichloro-N-methyl-3-oxobutanamide (CAS 20132-74-5)
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Recommended Standards
- 3-Ethoxy-4-fluorophenylboronic acid (CAS 900174-65-4)
- 3-Fluoro-5-(2-hydroxyethyl)phenylboronic acid (CAS 2377610-20-1)
- 3-(2-Fluoroethoxy)phenylboronic Acid (CAS 2096332-11-3)
- 4-Fluoro-3-(methoxymethyl)phenylboronic acid (CAS 337536-19-3)
- 2-Hydroxy-6-(methylthio)benzoic acid (CAS 1243388-66-0)
- Cis-4-(tert-butyl)-1-methylcyclohexanamine hydrochloride (CAS 37575-52-3)
- 1-(3-((Benzyl(cyclopropyl)amino)methyl)pyrrolidin-1-yl)-2-chloroethanone (CAS 1353972-71-0)
- 4-Hydroxybenzamide hydrate (CAS 138169-57-0)
- Ethyl 4-(2-hydroxypropan-2-yl)-2-isobutyl-1H-imidazole-5-carboxylate (CAS 1346598-38-6)
- 1-Nitro-3-(4-(trifluoromethoxy)phenoxy)benzene (CAS 1019997-75-1)
- N-(3,5-Dichlorophenyl)-3-oxobutanamide (CAS 52793-04-1)
- 5-(4-Chlorophenyl)-N-hexyl-1,3,4-thiadiazol-2-amine (CAS 380573-84-2)
- 4-Methanesulfonyl-6-(pyridin-2-yl)-2,2'-bipyridine (CAS 81874-51-3)
- Des-Lys16-Tirzepatide (CAS CATO-CPTD788957)
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