2-methyl-5-(trichloromethyl)-1,3,4-oxadiazole CAS 1195-26-2
| CAS No. | 1195-26-2 |
| Molecular Formula | C4H3Cl3N2O |
| Molecular Weight | 201.44 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-methyl-5-(trichloromethyl)-1,3,4-oxadiazole (CAS 1195-26-2), molecular formula C4H3Cl3N2O and molecular weight 201.44 g/mol, is a CATO reference standard with documented purity and traceability.
2-methyl-5-(trichloromethyl)-1,3,4-oxadiazole (C4H3Cl3N2O) contains an amide group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
As a certified reference material (CRM), 2-methyl-5-(trichloromethyl)-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.
Physical & Chemical Properties
| Molecular Formula | C4H3Cl3N2O |
| Molecular Weight | 201.44 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 DMSO, DMF, methanol |
| 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.) | 1957 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related methyl Standards
- 3-Methyl-5-(trichloromethyl)-1,2,4-oxadiazole (CAS 1195-25-1)
- 5-(Trichloromethyl)-4,5-dihydroisoxazol-5-ol (CAS 34648-11-8)
- Trichloromethyl Chloroformate (CAS 503-38-8)
- 2-(Trichloromethyl)pyridine (CAS 4377-37-1)
- 4-(Trichloromethyl)pyridine (CAS 22796-40-3)
- 3-ethyl-5-(trichloromethyl)-1,2,4-oxadiazole (CAS 1196-99-2)
- 5-(Trichloromethyl)isoxazole (CAS 88283-10-7)
- 2-(Trichloromethyl)-1H-imidazole (CAS 163769-73-1)
Recommended Standards
- 3-Chloro-4-(dichloromethyl)-2(5H)-furanone (CAS 122551-89-7)
- 5-Chloro-2-methoxy-6-methylpyridine-3-boronic acid (CAS 2377608-02-9)
- Ethyl 2-Bromo-2-chloroacetate (CAS 22524-32-9)
- 3-Chloro-2-ethoxypyridine-4-boronic acid (CAS 2096333-52-5)
- 4,5-Dichlorocatechol (CAS 3428-24-8)
- Bis(2-methylallyl)dipalladium dichloride (CAS 12081-18-4)
- 1-[2-(5-Bromo-4-methyl-thiazol-2-yl)-pyrrolidin-1-yl]-ethanone (CAS 1361112-87-9)
- 2,9-Undecadiyne (CAS 1785-53-1)
- [(4-Methoxy-benzyl)-methyl-amino]-acetic acidhydrochloride (CAS 857018-50-9)
- (S)-1-(7-(Benzyloxy)-2-methylquinazolin-4-yl)pyrrolidin-3-ol (CAS 646450-76-2)
- [1,2,3]Triazolo[1,5-a]pyridine-7-carboxylic acid (CAS 1555335-57-3)
- 2,2＇,4,4＇,5-Pentabromodiphenyl Ether (CAS 60348-60-9)
- Methyl 3-(6-chloropyridin-3-yl)acrylate (CAS 188524-63-2)
- [Tyr15] Fibrinopeptide B, human (CAS 125455-56-3)
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