3-Ethyl-2-((2-fluorobenzyl)thio)-5,6-dimethylthieno[2,3-d]pyrimidin-4(3H)-one CAS 573706-13-5
| CAS No. | 573706-13-5 |
| Molecular Formula | C17H17FN2OS2 |
| Molecular Weight | 348.46 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Ethyl-2-((2-fluorobenzyl)thio)-5,6-dimethylthieno[2,3-d]pyrimidin-4(3H)-one (CAS 573706-13-5), molecular formula C17H17FN2OS2 and molecular weight 348.46 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C17H17FN2OS2, 3-Ethyl-2-((2-fluorobenzyl)thio)-5,6-dimethylthieno[2,3-d]pyrimidin-4(3H)-one contains a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 348.46 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 3-Ethyl-2-((2-fluorobenzyl)thio)-5,6-dimethylthieno[2,3-d]pyrimidin-4(3H)-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 | C17H17FN2OS2 |
| Molecular Weight | 348.46 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Related Ethyl Standards
- 2-((4-Fluorobenzyl)thio)-3-isobutylthieno[3,2-d]pyrimidin-4(3H)-one (CAS 1787902-73-1)
- 2-((2-Fluorobenzyl)thio)-3-isobutylthieno[3,2-d]pyrimidin-4(3H)-one (CAS 1788532-80-8)
- 3-Ethyl-2-((3-fluorobenzyl)thio)-5,6-dimethylthieno[2,3-d]pyrimidin-4(3H)-one (CAS 573669-02-0)
- 3-Ethyl-2-((4-fluorobenzyl)thio)-5,6-dimethylthieno[2,3-d]pyrimidin-4(3H)-one (CAS 618427-51-3)
- 4-[4-(4-Fluorobenzyl)-5-methyl-4H-1,2,4-triazol-3-yl]-1-phenyl-1H-pyrazol-5-amine (CAS 955962-91-1)
- 2-(((5-((4-Fluorobenzyl)thio)-1,3,4-thiadiazol-2-yl)amino)methyl)phenol (CAS 329779-42-2)
- 3-(1-(3-Fluorobenzyl)-5,6-dimethyl-1H-benzo[d]imidazol-2-yl)pyridin-2(1H)-one (CAS 860787-72-0)
- 3-(1-(4-Fluorobenzyl)-5,6-dimethyl-1H-benzo[d]imidazol-2-yl)pyridin-2(1H)-one (CAS 861212-05-7)
Recommended Standards
- 3-((4-(tert-Butyl)benzyl)thio)-5H-[1,2,4]triazino[5,6-b]indole (CAS 332384-78-8)
- 2-(Methylthio)-N-(phenyl(p-tolyl)methyl)nicotinamide (CAS 949743-42-4)
- 2-(3,4-Dimethoxyphenyl)-N-(2-(dimethylamino)-2-(thiophen-2-yl)ethyl)acetamide (CAS 850471-87-3)
- 4-Methyl-11-(morpholin-4-yl)-8-thia-12-azatetracyclo[8.8.0.0^{2,7}.0^{13,18}]octadeca-1(18),2,4,6,10,12,14,16-octaene (CAS 866136-65-4)
- Sodium [(4-Chlorophenyl)thio][10-methylacridin-9(10H)-ylidene]methyl Phosphate (CAS 193884-53-6)
- 4-(5-Bromopyridin-3-yl)-3,5-dimethylisoxazole (CAS 1272356-95-2)
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- 5-(3-Chlorophenoxymethyl)thiophene-2-carboxylic acid (CAS 74556-81-3)
- 2-Amino-6-chlorobenzoic Acid (CAS 2148-56-3)
- 7-Bromo-9-chloro-2,3,4,5-tetrahydro-1,4-benzoxazepine hydrochloride (CAS 2126177-64-6)
- Methyl (r)-3-amino-3-(4-fluorophenyl)propanoate (CAS 1217977-33-7)
- N-isobutylbut-2-yn-1-amine hydrochloride (CAS 1185302-04-8)
- (S)-4-(6-(3,5-Dimethylisoxazol-4-yl)-1-(1-(pyridin-2-yl)ethyl)-1H-pyrrolo[3,2-b]pyridin-3-yl)benzoic acid (CAS 1627929-55-8)
- Endo-38a-Pro-Exenatide trifluoroacetate salt (CAS 1678416-95-9)
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