4--Methylacetophenone Azine CAS 21399-33-7
| CAS No. | 21399-33-7 |
| Molecular Formula | C18H20N2 |
| Molecular Weight | 264.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4--Methylacetophenone Azine (CAS 21399-33-7), molecular formula C18H20N2 and molecular weight 264.36 g/mol, is a CATO reference standard with documented purity and traceability.
4--Methylacetophenone Azine (C18H20N2) contains a nitrogen-containing heterocyclic scaffold, a nitrile group. Its high carbon-to-hydrogen ratio confers good lipid solubility; 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), 4--Methylacetophenone Azine 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 | C18H20N2 |
| Molecular Weight | 264.36 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Nitrogen Atoms | 2 |
Related Methylacetophenone Standards
Recommended Standards
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- 1-Ethyl-4-methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (CAS 2223054-75-7)
- 1-(2-Methyl-1,5-naphthyridin-3-yl)ethan-1-one (CAS 55234-60-1)
- (2,5-Difluorobenzyl)(4-fluorophenyl)sulfane (CAS 1443347-14-5)
- (R)-2-Amino-1-(piperidin-1-yl)propan-1-one hydrochloride (CAS 720001-82-1)
- Furan-2-ylmethyl 3-amino-1H-1,2,4-triazole-5-carboxylate (CAS 344886-02-8)
- Semaglutide238 (CAS CATO-C4X-2226238)
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