2-(Chloromethyl)-5-(3,4-dichlorophenyl)-1,3,4-oxadiazole CAS 33575-81-4
| CAS No. | 33575-81-4 |
| Molecular Formula | C9H5Cl3N2O |
| Molecular Weight | 263.51 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2-(Chloromethyl)-5-(3,4-dichlorophenyl)-1,3,4-oxadiazole 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.
CATO supplies 2-(Chloromethyl)-5-(3,4-dichlorophenyl)-1,3,4-oxadiazole (CAS 33575-81-4), a certified reference material (molecular formula C9H5Cl3N2O, MW 263.51 g/mol) for analytical method development and quality control.
Based on its molecular formula C9H5Cl3N2O, 2-(Chloromethyl)-5-(3,4-dichlorophenyl)-1,3,4-oxadiazole contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 263.51 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C9H5Cl3N2O |
| Molecular Weight | 263.51 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 DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chloromethyl Standards
- 2-(Chloromethyl)-5-(2,6-dichlorophenyl)-1,3,4-oxadiazole (CAS 1016503-65-3)
- 3-(Chloromethyl)-5-(2,3-dichlorophenyl)-1,2,4-oxadiazole (CAS 1039885-60-3)
- 5-(Chloromethyl)-3-(2,6-dichlorophenyl)-1,2,4-oxadiazole (CAS 117762-99-9)
- 5-(Chloromethyl)-3-(3,5-dichlorophenyl)-1,2,4-oxadiazole (CAS 1700115-36-1)
- 2-(Chloromethyl)-5-(2,4-dichlorophenyl)-1,3,4-oxadiazole (CAS 183368-35-6)
- 3-(Chloromethyl)-5-(3,4-dichlorophenyl)-1,2,4-oxadiazole (CAS 287917-57-1)
- 5-(Chloromethyl)-3-(2,4-dichlorophenyl)-1,2,4-oxadiazole (CAS 406193-97-3)
- 2-(Chloromethyl)-4,6-bis(trifluoromethyl)pyridine (CAS 1196152-91-6)
Recommended Standards
- 2-(Trichloromethyl)-3,4-dihydroquinazolin-4-one (CAS 5558-95-2)
- 2,4,6-Trichloro-7-methoxyquinazoline (CAS 79025-79-9)
- 2,2,2-Trichloro-1-(1H-pyrrolo[2,3-b]pyridin-3-yl)ethanone (CAS 163220-69-7)
- 3-phenyl-5-(trichloromethyl)-1,2,4-oxadiazole (CAS 1208-05-5)
- 9,9-Dimethyl-2,7-bis[N-(1-naphthyl)-N-phenylamino]fluorene (CAS 222319-05-3)
- (5-Chloro-2-hydroxy-1,3-phenylene)dimethanol (CAS 17026-49-2)
- 2-(Dimethylamino)imidazo[1,2-a]pyridine-3-carbaldehyde (CAS 1153323-38-6)
- 3-Bromo-2-(difluoromethyl)-6-methoxypyridin-4-amine (CAS 1805288-19-0)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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