3-(Chloromethyl)-5-(difluoromethyl)pyridine hydrobromide CAS 1646288-39-2
| CAS No. | 1646288-39-2 |
| Molecular Formula | C7H6ClF2N |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 258.49 g/mol gives 3-(Chloromethyl)-5-(difluoromethyl)pyridine hydrobromide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
3-(Chloromethyl)-5-(difluoromethyl)pyridine hydrobromide (CAS 1646288-39-2), molecular formula C7H6ClF2NHBr and molecular weight 258.49 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C7H6ClF2NHBr, 3-(Chloromethyl)-5-(difluoromethyl)pyridine hydrobromide contains a nitrile group, fluorine/chlorine/bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 258.49 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C7H6ClF2N HBr |
| Molecular Weight | 258.49 g/mol |
| Appearance | 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1993 |
| Halogen Content | F/Cl/Br-containing |
| Nitrogen Atoms | 1 |
Related Chloromethyl Standards
- 7-(Chloromethyl)-3-methyl-5H-thiazolo[3,2-a]pyrimidin-5-one (CAS 100003-81-4)
- 7-(Chloromethyl)-2,3-dimethyl-5H-thiazolo[3,2-a]pyrimidin-5-one (CAS 100003-82-5)
- 7-(Chloromethyl)-3-(4-chlorophenyl)-5H-thiazolo[3,2-a]pyrimidin-5-one (CAS 100003-85-8)
- chloromethyl 2-ethoxy-2-methylpropanoate (CAS 1000296-74-1)
- 5-(chloromethyl)-N-(4-methylbenzyl)-1,3,4-thiadiazole-2-carboxamide (CAS 1000932-24-0)
- 5-(Chloromethyl)-7-ethoxy-2-(trifluoromethyl)-[1,2,4]triazolo[1,5-a]pyrimidine (CAS 1000932-47-7)
- 5-(chloromethyl)-N-(4-fluorobenzyl)-1,3,4-thiadiazole-2-carboxamide (CAS 1000932-60-4)
- 2-(Chloromethyl)-5,6-diphenylfuro[2,3-d]pyrimidin-4-amine (CAS 1000933-67-4)
Recommended Standards
- 6-Fluoro-3-(4-methoxyphenyl)-4-methylcoumarin (CAS 527751-33-3)
- 2-(Phenylthio)ethanol (CAS 699-12-7)
- 2-(Dimethylamino)-5-iodo-4,6-dimethylpyridine-3-carbonitrile (CAS 2197057-61-5)
- 1,5-Dichloro-2-fluoro-3-iodobenzene (CAS 1804514-77-9)
- 3-(Cyclopentanecarbonyl)thiazolidine-4-carboxylic acid (CAS 1101928-51-1)
- Methyl 6-methoxy-1,3-benzothiazole-2-carboxylate (CAS 884-22-0)
- 5-Nitro-n4,n4-dipropylpyrimidine-2,4-diamine (CAS 306290-78-8)
- n-(Cyclopropylmethyl)-1-(pyridin-3-yl)ethan-1-amine (CAS 1019611-92-7)
- 3-amino-1-(3-fluorophenyl)piperidin-2-one (CAS 1311313-90-2)
- Insulin Degludec Impurity 17 (CAS CATO-C4X-215717)
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