1-(2-Nitrophenyl)-2-phenyl-5,6,7,8-tetrahydroquinazoline-4(1H)-thione CAS 62721-92-0
| CAS No. | 62721-92-0 |
| Molecular Formula | C20H17N3O2S |
| Molecular Weight | 363.43 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-(2-Nitrophenyl)-2-phenyl-5,6,7,8-tetrahydroquinazoline-4(1H)-thione (CAS 62721-92-0), molecular formula C20H17N3O2S and molecular weight 363.43 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C20H17N3O2S, 1-(2-Nitrophenyl)-2-phenyl-5,6,7,8-tetrahydroquinazoline-4(1H)-thione contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 363.43 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
As a certified reference material (CRM), 1-(2-Nitrophenyl)-2-phenyl-5,6,7,8-tetrahydroquinazoline-4(1H)-thione meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C20H17N3O2S |
| Molecular Weight | 363.43 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1974 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- 1-((2,5-Dimethoxyphenyl)sulfonyl)-4-(pyridin-2-yl)piperazine (CAS 497060-94-3)
- 2-[(1,4-Dihydro-5,6-Dimethyl-4-Oxothieno[2,3-d]Pyrimidin-2-ylThio]-N-(2-Fluorophenyl)-Acetamide (CAS 606108-16-1)
- (R)-1-(2-fluoro-3-methylphenyl)ethan-1-amine (CAS 1213036-11-3)
- 2-((4-Chloro-3-methylphenyl)amino)pyridine-3-sulfonamide (CAS 1340970-32-2)
- 4-Bromo-2-mercapto-6-(trifluoromethyl)benzothiazole (CAS 1215205-88-1)
- Cefoxitin EP Impurity B (CAS CATO-C4X-15782)
- Methyl 4-chloro-2-nitrobenzoate (CAS 42087-80-9)
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- 3-methyl-5,6,7,8-tetrahydroimidazo[1,5-a]pyrazine hydrochloride (CAS 601515-50-8)
- ((2R,3S)-3-((4-Chlorobenzoyl)oxy)-5-methoxytetrahydrofuran-2-yl)methyl 4-chlorobenzoate (CAS 99886-53-0)
- Pancreatic Polypeptide (31-36), amide, human (CAS 74012-13-8)
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