1326875-66-4 3-(4-Ethylphenyl)-2,4-dioxo-1,2,3,4-tetrahydroquinazoline-7-carboxylic acid MFCD20528923 CAS 1326875-66-4
| CAS No. | 1326875-66-4 |
| Molecular Formula | C17H14N2O4 |
| Molecular Weight | 310.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
1326875-66-4 3-(4-Ethylphenyl)-2,4-dioxo-1,2,3,4-tetrahydroquinazoline-7-carboxylic acid MFCD20528923 (CAS 1326875-66-4) is a high-purity analytical reference standard with the molecular formula C17H14N2O4 and a molecular weight of 310.30 g/mol.
Structurally, 1326875-66-4 3-(4-Ethylphenyl)-2,4-dioxo-1,2,3,4-tetrahydroquinazoline-7-carboxylic acid MFCD20528923 (C17H14N2O4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 310.30 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).
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 | C17H14N2O4 |
| Molecular Weight | 310.30 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.) | 1991 |
| Nitrogen Atoms | 2 |
Related Ethylphenyl Standards
- 2-(4-Ethylphenyl)-6-methylquinoline-4-carbonyl chloride (CAS 1160253-51-9)
- 2-(4-Ethylphenyl)-8-methylquinoline-4-carbonyl chloride (CAS 1160254-21-6)
- 3-(4-Ethylphenyl)-3-(1-oxoisoindolin-2-yl)propanoic acid (CAS 439096-97-6)
- N-(2-ethylphenyl)-2-(3-oxo-1,2,3,4-tetrahydroquinoxalin-2-yl)acetamide (CAS 470695-53-5)
- 4-(2-Ethylphenyl)-5-(phenoxymethyl)-4H-1,2,4-triazole-3-thiol (CAS 917747-00-3)
- 4-Ethylphenyl 5-chloro-2-(methylthio)pyrimidine-4-carboxylate (CAS 879934-98-2)
- 3-(((4-Ethylphenyl)amino)methyl)-7-methoxyquinolin-2(1H)-one (CAS 947018-39-5)
- N-(2-ethylphenyl)-3-(4-nitrophenyl)-3-oxopropanamide (CAS 869464-84-6)
Recommended Standards
- (S)-2-((tert-Butoxycarbonyl)amino)-3-(3-nitrophenyl)propanoic acid (CAS 131980-29-5)
- 3-(4-Hydroxyphenyl)-4-oxo-4H-chromen-7-yl acetate (CAS 13293-49-7)
- 2-(3-(2,4-Difluorophenyl)-4,5-dihydroisoxazol-5-yl)-1-morpholinoethan-1-one (CAS 1309793-47-2)
- α,4-Di-O-acetyl Vanillylmandelic Acid Ethyl Ester (CAS 1329795-85-8)
- 2-Fluoro-1-phenylethan-1-ol (CAS 450-94-2)
- methyl 2-(2-hydroxy-3-methoxyphenyl)acetate (CAS 103324-26-1)
- Indoline-4-carboxylic acid hydrochloride (CAS 1187933-04-5)
- METHYL 3-(2-(HYDROXYMETHYL)-1H-INDOL-1-YL)PROPANOATE (CAS 1420476-05-6)
- 1-(3-Chloro-4-fluorobenzenesulfonyl)piperazine hydrochloride (CAS 1251923-60-0)
- N2-(3-fluorophenyl)-1,3,5-triazine-2,4-diamine (CAS 19079-38-0)
- 8-Fluoro-6-methylchroman-4-amine (CAS 1273666-45-7)
- 1-Benzyl-2-methyl-1H-benzoimidazol-5-ylaminedihydrochloride (CAS 1185301-05-6)
- 1,2,3,4-Tetrahydroquinoline-5-sulfonyl fluoride (CAS 2377299-19-7)
- Semaglutide impurity 196 (CAS CATO-C4X-2226196)
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