4-Bromo-5-chloro-6-(difluoromethyl)picolinonitrile CAS 1805005-31-5
| CAS No. | 1805005-31-5 |
| Molecular Formula | C7H2BrClF2N2 |
| Molecular Weight | 267.46 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-Bromo-5-chloro-6-(difluoromethyl)picolinonitrile is closely related to a nitrile group, fluorine/chlorine/bromine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
4-Bromo-5-chloro-6-(difluoromethyl)picolinonitrile (CAS 1805005-31-5), molecular formula C7H2BrClF2N2 and molecular weight 267.46 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C7H2BrClF2N2, 4-Bromo-5-chloro-6-(difluoromethyl)picolinonitrile contains a nitrile group, fluorine/chlorine/bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 267.46 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-Bromo-5-chloro-6-(difluoromethyl)picolinonitrile 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 | C7H2BrClF2N2 |
| Molecular Weight | 267.46 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | F/Cl/Br-containing |
| Nitrogen Atoms | 2 |
Related Bromo Standards
- 4-Bromo-5-chloro-3-cyano-2-(difluoromethyl)pyridine (CAS 1803686-93-2)
- 6-Bromo-4-chloro-5-(difluoromethyl)nicotinonitrile (CAS 1804685-19-5)
- 2-Bromo-5-chloro-3-(difluoromethyl)isonicotinonitrile (CAS 1805087-51-7)
- 4-Bromo-3-chloro-6-(difluoromethyl)picolinonitrile (CAS 1805087-70-0)
- 2-Bromo-6-chloro-5-(difluoromethyl)nicotinonitrile (CAS 1805233-52-6)
- 6-Bromo-3-chloro-5-(difluoromethyl)picolinonitrile (CAS 1806027-82-6)
- 4-Bromo-5-chloro-2-cyano-3-(difluoromethyl)pyridine (CAS 1806028-13-6)
- 6-Bromo-5-chloro-4-(difluoromethyl)picolinonitrile (CAS 1806840-80-1)
Recommended Standards
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- (2,4-Diethoxyphenyl)methanol (CAS 181819-52-3)
- Acamprosate EP Impurity C Calcium Salt (CAS 233591-26-9)
- 64907-21-7 7beta,25-dihydroxycholesterol (CAS 64907-21-7)
- 2-(2-Methylcyclopropyl)-6-oxo-1,6-dihydropyrimidine-5-carboxylic acid (CAS 1482454-96-5)
- 2-(((4-Phenoxybutyl)thio)methyl)-1H-benzo[d]imidazole (CAS 867041-76-7)
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- 2-Cyano-n'-hydroxyethanimidamide (CAS 4264-06-6)
- 2-(3,4-Dihydro-2H-benzo[b][1,4]dioxepin-6-yl)-1-(3-methoxypropyl)-5-oxopyrrolidine-3-carboxylic acid (CAS 1311885-02-5)
- Palmitoyl Tripeptide-1 TFA salt (CAS 2803375-47-3)
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