3-Benzyl-2-(methylthio)-7-nitroquinazolin-4(3H)-one CAS 916137-34-3
| CAS No. | 916137-34-3 |
| Molecular Formula | C16H13N3O3S |
| Molecular Weight | 327.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 3-Benzyl-2-(methylthio)-7-nitroquinazolin-4(3H)-one (CAS 916137-34-3), a certified reference material (molecular formula C16H13N3O3S, MW 327.36 g/mol) for analytical method development and quality control.
Structurally, 3-Benzyl-2-(methylthio)-7-nitroquinazolin-4(3H)-one (C16H13N3O3S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone 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 327.36 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).
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 | C16H13N3O3S |
| Molecular Weight | 327.36 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Benzyl Standards
- 3-Benzyl-2-(methylthio)-6-nitroquinazolin-4(3H)-one (CAS 852239-58-8)
- (6-Methyl-3-(methylthio)-5-oxo-1,2,4-triazin-4(5H)-yl)methyl 3,4-difluorobenzoate (CAS 877642-91-6)
- 3-(Methylthio)-N-(4-(pyridin-2-yl)thiazol-2-yl)benzamide (CAS 896338-09-3)
- 3-(Methylthio)-N-(4-(pyridin-3-yl)thiazol-2-yl)benzamide (CAS 896356-41-5)
- 3-(Methylthio)-N-(4-(pyridin-4-yl)thiazol-2-yl)benzamide (CAS 896338-49-1)
- 4-(Methylthio)-N-(4-(pyridin-2-yl)thiazol-2-yl)benzamide (CAS 896352-65-1)
- (2-(Methylthio)phenyl)(2-(morpholinomethyl)phenyl)methanone (CAS 898750-23-7)
- (4-(Methylthio)phenyl)(4-(morpholinomethyl)phenyl)methanone (CAS 898769-88-5)
Recommended Standards
- 4-((2-Hydroxy-3-methoxybenzylidene)amino)-3-(pyridin-2-yl)-1H-1,2,4-triazole-5(4H)-thione (CAS 497823-49-1)
- 3-(4-(4-Methoxy-3-nitrophenyl)thiazol-2-yl)aniline (CAS 886495-52-9)
- 4-((4-Aminonaphthalen-1-yl)diazenyl)benzenesulfonic acid (CAS 3713-23-3)
- 2-Hydroxynicotinonitrile (CAS 95907-03-2)
- 2,2,3,3,4,4,5,5,5-Nonafluoropentyl 2,7-dinitro-9-oxo-9H-fluorene-4-carboxylate (CAS 253605-68-4)
- 2,7-Dichloro-1H-benzo[d]imidazole (CAS 15965-56-7)
- tert-Butyl (R)-(1-(chlorosulfonyl)piperidin-3-yl)carbamate (CAS 2878500-44-6)
- 2-(1-Benzylguanidino)acetic acid (CAS 35404-63-8)
- Cinacalcet Impurity 92 (CAS CATO-C4X-105992)
- Ornidazole Impurity 70 (CAS 2759277-30-8)
- Ethyl 2-(2-(pyrimidin-2-ylamino)thiazol-4-yl)acetate (CAS 886498-73-3)
- 3,5-Dimethyl-1H-pyrazole-1-carboximidamide acetate (CAS 78060-73-8)
- 5-[(1R)-1,5-Dimethyl-4-hexen-1-yl]-2-methyl-3-cyclohexene-1,1-diol (CAS 915301-61-0)
- Semaglutide Impurity 166 (CAS 1395881-03-4)
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