3-(4-Ethoxybenzo[d]thiazol-2-yl)-2-phenylquinazolin-4(3H)-one CAS 918154-71-9
| CAS No. | 918154-71-9 |
| Molecular Formula | C23H17N3O2S |
| Molecular Weight | 399.46 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
3-(4-Ethoxybenzo[d]thiazol-2-yl)-2-phenylquinazolin-4(3H)-one (CAS 918154-71-9) is a high-purity analytical reference standard with the molecular formula C23H17N3O2S and a molecular weight of 399.46 g/mol.
3-(4-Ethoxybenzo[d]thiazol-2-yl)-2-phenylquinazolin-4(3H)-one (C23H17N3O2S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 | C23H17N3O2S |
| Molecular Weight | 399.46 g/mol |
| 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) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Ethoxybenzo Standards
- 3-(5-Ethoxybenzo[d]thiazol-2-yl)-2-phenylquinazolin-4(3H)-one (CAS 918154-66-2)
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- 5-(((6-Ethoxybenzo[d]thiazol-2-yl)amino)methylene)-2,2-dimethyl-1,3-dioxane-4,6-dione (CAS 1023845-26-2)
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Recommended Standards
- 3-((4-Fluorophenyl)sulfonyl)-N-(2-(phenylsulfonyl)ethyl)propanamide (CAS 337923-49-6)
- 2,4,6-Tris(4-methoxyphenyl)pyrylium (CAS 47659-08-5)
- 2-(2-((4-Phenylpiperazin-1-yl)sulfonyl)ethyl)isoindoline-1,3-dione (CAS 919854-33-4)
- 4-(4-Hydroxy-3-methoxyphenyl)-5-(3-methoxypropyl)-3-(thiophen-2-yl)-4,5-dihydropyrrolo[3,4-c]pyrazol-6(1H)-one (CAS 939742-60-6)
- 8-(Chloromethyl)-1-naphthonitrile (CAS 18512-45-3)
- 4-(2-phenylethyl)piperazin-1-amine (CAS 34924-96-4)
- 1,3,5-Trifluoro-2,4,6-tris(phenylethynyl)benzene (CAS 674289-04-4)
- Methyl 2,3-dibromo-4-fluorophenylacetate (CAS 1803817-37-9)
- Methyl 3-fluoro-4-(piperidin-4-yl)benzoate (CAS 1044773-79-6)
- 5-{[(3,4-dichlorophenyl)amino](hydroxy)methylidene}-2,2-dimethyl-1,3-dioxane-4,6-dione (CAS 186973-04-6)
- 2-(1-(2,2,2-Trifluoroethyl)pyrrolidin-3-yl)acetic acid (CAS 1508620-50-5)
- N-(1-Cyclohexyl-2-methylpropan-2-yl)formamide (CAS 5531-32-8)
- (±)-sec-Butyl-1,1,1-d3 Alcohol (CAS 53716-61-3)
- Semaglutide impurity 251 (CAS CATO-C4X-2226251)
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