3-benzyl-5-(2-chlorophenyl)-2-sulfanyl-thieno[2,3-d]pyrimidin-4-one CAS 749902-88-3
| CAS No. | 749902-88-3 |
| Molecular Formula | C19H31ClN2OS2 |
| Molecular Weight | 403.05 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 403.05 g/mol gives 3-benzyl-5-(2-chlorophenyl)-2-sulfanyl-thieno[2,3-d]pyrimidin-4-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
3-benzyl-5-(2-chlorophenyl)-2-sulfanyl-thieno[2,3-d]pyrimidin-4-one (CAS 749902-88-3), molecular formula C19H31ClN2OS2 and molecular weight 403.05 g/mol, is a CATO reference standard with documented purity and traceability.
3-benzyl-5-(2-chlorophenyl)-2-sulfanyl-thieno[2,3-d]pyrimidin-4-one (C19H31ClN2OS2) contains a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures 3-benzyl-5-(2-chlorophenyl)-2-sulfanyl-thieno[2,3-d]pyrimidin-4-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C19H31ClN2OS2 |
| Molecular Weight | 403.05 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
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Recommended Standards
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- Tedizolid Impurity 72 (CAS CATO-C4X-105472)
- 10-(4-Bromophenyl)-5,5-difluoro-1,3,7,9-tetramethyl-5H-dipyrrolo[1,2-c:2',1'-f][1,3,2]diazaborinin-4-ium-5-uide (CAS 850534-66-6)
- N-(2-chloro-5-nitrophenyl)-1-phenylcyclopentane-1-carboxamide (CAS 1022528-06-8)
- 5-(Pyridin-3-yl)thiophen-2-amine (CAS 837376-58-6)
- 6-(Pyrimidin-5-yloxy)pyridin-3-amine (CAS 287944-20-1)
- Fluhexafon (CAS 1097630-26-6)
- (3R,4S,5S,6S)-6-(fluoromethyl)tetrahydro-2H-pyran-2,3,4,5-tetraol (CAS 34168-77-9)
- 4-Bromoindole-3-acetic Acid (CAS 89245-41-0)
- Lutetium trioxide (CAS 12032-20-1)
- Ethyl 2-(4-(1-hydroxyethyl)phenyl)acetate (CAS 58262-39-8)
- N-(1-(Furan-2-carbonyl)-1,2,3,4-tetrahydroquinolin-7-yl)cyclopropanecarboxamide (CAS 946265-40-3)
- His-Aib-Semaglutide (CAS CATO-C4X-2226220)
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