9-(4-Isopropylphenyl)-5,6,7,9-tetrahydro-[1,2,4]triazolo[5,1-b]quinazolin-8(4H)-one CAS 537001-93-7
| CAS No. | 537001-93-7 |
| Molecular Formula | C18H20N4O |
| Molecular Weight | 308.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 9-(4-Isopropylphenyl)-5,6,7,9-tetrahydro-[1,2,4]triazolo[5,1-b]quinazolin-8(4H)-one (C18H20N4O) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 308.38 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies 9-(4-Isopropylphenyl)-5,6,7,9-tetrahydro-[1,2,4]triazolo[5,1-b]quinazolin-8(4H)-one (CAS 537001-93-7), a certified reference material (molecular formula C18H20N4O, MW 308.38 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 | C18H20N4O |
| Molecular Weight | 308.38 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Nitrogen Atoms | 4 |
Related Isopropylphenyl Standards
- Ethyl 2-(4-isopropylphenyl)-1H-benzo[d]imidazole-6-carboxylate (CAS 1416347-05-1)
- N-(4-Isopropylphenyl)-2-(2-mercapto-4-oxo-4,5-dihydro-1,3-thiazol-5-yl)acetamide (CAS 1142200-56-3)
- N-(4-isopropylphenyl)-1-phenylcyclopentane-1-carboxamide (CAS 1023857-70-6)
- n-(2-Isopropylphenyl)-1-phenylcyclopentane-1-carboxamide (CAS 854131-86-5)
- N-(4-Isopropylphenyl)-2-(trifluoromethyl)benzamide (CAS 794584-97-7)
- 2-(4-Isopropylphenyl)quinoline-4-carbonyl chloride (CAS 1160264-73-2)
- 6-(4-Isopropylphenyl)-2-phenylpyridazine-3(2H)-thione (CAS 378219-94-4)
- 3-(4-isopropylphenyl)-1-phenyl-1H-pyrazole-4-carboxylic acid (CAS 956181-55-8)
Recommended Standards
- 9-(1-Methyl-1H-indol-3-yl)acridine (CAS 33032-22-3)
- 9-Amino-N-(2-(dimethylamino)ethyl)acridine-4-carboxamide (CAS 89459-43-8)
- 8-Hydroxyl Clozapine (CAS 63687-94-5)
- Ethyl 2-[3-(thiophen-2-yl)-7h-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazin-6-yl]acetate (CAS 301173-57-9)
- 2,5-dichloro-2'-piperidinomethyl benzophenone (CAS 898773-69-8)
- Methyl (1S,5S,6S)-2-oxabicyclo[3.1.0]Hexane-6-carboxylate (CAS 88333-11-3)
- 1-(2,3-Dihydro-4H-benzo[b][1,4]oxazin-4-yl)-2-(piperazin-1-yl)ethan-1-one (CAS 1308565-07-2)
- Methyl (2S)-2-{[(tert-butoxy)carbonyl]amino}-3-[(triphenylmethyl)carbamoyl]propanoate (CAS 161001-61-2)
- 6-Oxo-1,6-dihydropyridine-3-sulfonyl chloride (CAS 1357566-60-9)
- 2,3-Difluorobenzaldehyde (CAS 2646-91-5)
- 3-Amino-4-chloro-N-(2,4-dimethoxyphenyl)benzamide (CAS 1018545-18-0)
- 1-Naphthyl β-D-glucopyranoside (CAS 19939-82-3)
- 3-Bromo-5-(difluoromethyl)-4-fluoropyridin-2-amine (CAS 1805332-08-4)
- Liraglutide Impurity 26 (CAS CATO-C4X-199226)
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