4-(5-Methyl-1,2,4-oxadiazol-3-yl)-2-[(4-methylphenyl)methyl]-1H,2H,3H,5H,6H,7H,8H,9H-pyrimido[1,6-a]azepine-1,3-dione CAS 1775346-13-8
| CAS No. | 1775346-13-8 |
| Molecular Formula | C20H22N4O3 |
| Molecular Weight | 366.41 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, 4-(5-Methyl-1,2,4-oxadiazol-3-yl)-2-[(4-methylphenyl)methyl]-1H,2H,3H,5H,6H,7H,8H,9H-pyrimido[1,6-a]azepine-1,3-dione is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 366.41 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies 4-(5-Methyl-1,2,4-oxadiazol-3-yl)-2-[(4-methylphenyl)methyl]-1H,2H,3H,5H,6H,7H,8H,9H-pyrimido[1,6-a]azepine-1,3-dione (CAS 1775346-13-8), a certified reference material (molecular formula C20H22N4O3, MW 366.41 g/mol) for analytical method development and quality control.
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 | C20H22N4O3 |
| Molecular Weight | 366.41 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Nitrogen Atoms | 4 |
Related Methyl Standards
- 4-(5-Ethyl-1,2,4-oxadiazol-3-yl)-2-[(3-methylphenyl)methyl]-1H,2H,3H,5H,6H,7H,8H-pyrido[1,2-c]pyrimidine-1,3-dione (CAS 1775345-57-7)
- 4-(5-Methyl-1,2,4-oxadiazol-3-yl)-2-[(2-methylphenyl)methyl]-1H,2H,3H,5H,6H,7H,8H,9H-pyrimido[1,6-a]azepine-1,3-dione (CAS 1775354-03-4)
- 4-(5-Methyl-1,2,4-oxadiazol-3-yl)-2-[(3-methylphenyl)methyl]-1H,2H,3H,5H,6H,7H,8H,9H-pyrimido[1,6-a]azepine-1,3-dione (CAS 1775354-18-1)
- 4-(5-Ethyl-1,2,4-oxadiazol-3-yl)-2-[(2-methylphenyl)methyl]-1H,2H,3H,5H,6H,7H,8H-pyrido[1,2-c]pyrimidine-1,3-dione (CAS 1775503-62-2)
- 4-(2-(3-(5-Ethyl-1,3,4-oxadiazol-2-yl)phenoxy)acetamido)benzamide (CAS 946275-52-1)
- 1-(1-(3-Methyl-1,2,4-oxadiazol-5-yl)cyclohexyl)-3-(2-(trifluoromethyl)phenyl)urea (CAS 1396799-37-3)
- 2-((5-Benzyl-1,3,4-oxadiazol-2-yl)thio)-N-(4-ethoxyphenyl)acetamide (CAS 332907-07-0)
- 4-(5-Ethyl-1,2,4-oxadiazol-3-yl)-2-[(2-fluorophenyl)methyl]-1H,2H,3H,5H,6H,7H,8H-pyrido[1,2-c]pyrimidine-1,3-dione (CAS 1775345-51-1)
Recommended Standards
- SYM 2206 (CAS 173952-44-8)
- 1,1'-Bis(4-formylphenyl)-[4,4'-bipyridine]-1,1'-diium (CAS 1690360-53-2)
- 2-Benzyl-4-(5-ethyl-1,2,4-oxadiazol-3-yl)-1H,2H,3H,5H,6H,7H,8H,9H-pyrimido[1,6-a]azepine-1,3-dione (CAS 1775377-29-1)
- H-Tyr-Trp-NH2 (CAS 165192-28-9)
- tert-Butyl 4-(methyl(1-(pyrazin-2-yl)ethyl)amino)piperidine-1-carboxylate (CAS 1289388-31-3)
- 1-(6-(4-Ethylpiperazin-1-yl)-2-methylpyridin-3-yl)ethan-1-ol (CAS 1355192-79-8)
- 4-((4-Carboxybenzyl)oxy)benzoic acid (CAS 345221-90-1)
- N-(4-methylbenzyl)-1-(1,3,5-trimethyl-1H-pyrazol-4-yl)methanamine (CAS 1152936-31-6)
- tert-Butyl (1R,4R)-5-oxo-2-azabicyclo[2.2.2]octane-2-carboxylate (CAS 1818843-13-8)
- N-((1-Ethyl-1H-pyrazol-5-yl)methyl)-1-isobutyl-5-methyl-1H-pyrazol-3-amine hydrochloride (CAS 1856100-22-5)
- Lenvatinib Impurity 146 (CAS CATO-C4X-1140146)
- 4-Dimethylaminocinnamaldehyde (CAS 6203-18-5)
- 5-Chloro-3-iodo-1-methyl-1H-pyrazole (CAS 2585063-96-1)
- Semaglutide impurity 81 (CAS CATO-C4X-222681)
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