2-mercapto-3-(2-phenylethyl)-3,5,6,7-tetrahydro-4H-cyclopenta[4,5]thieno[2,3-d]pyrimidin-4-one CAS 351005-68-0
| CAS No. | 351005-68-0 |
| Molecular Formula | C17H16N2OS2 |
| Molecular Weight | 328.45 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 2-mercapto-3-(2-phenylethyl)-3,5,6,7-tetrahydro-4H-cyclopenta[4,5]thieno[2,3-d]pyrimidin-4-one.
2-mercapto-3-(2-phenylethyl)-3,5,6,7-tetrahydro-4H-cyclopenta[4,5]thieno[2,3-d]pyrimidin-4-one (CAS 351005-68-0), molecular formula C17H16N2OS2 and molecular weight 328.45 g/mol, is a CATO reference standard with documented purity and traceability.
2-mercapto-3-(2-phenylethyl)-3,5,6,7-tetrahydro-4H-cyclopenta[4,5]thieno[2,3-d]pyrimidin-4-one (C17H16N2OS2) contains a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
As a certified reference material (CRM), 2-mercapto-3-(2-phenylethyl)-3,5,6,7-tetrahydro-4H-cyclopenta[4,5]thieno[2,3-d]pyrimidin-4-one 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 | C17H16N2OS2 |
| Molecular Weight | 328.45 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Related mercapto Standards
- 2-Mercapto-3-phenyl-3,5,6,7,8,9-hexahydro-10-thia-1,3-diaza-benzo[a]azulen-4-one (CAS 59898-71-4)
- 2-Mercapto-3-p-tolyl-5,6,7,8-tetrahydro-3H-benzo[4,5]thieno[2,3-d]pyrimidin-4-one (CAS 59898-69-0)
- 2-Mercapto-7-methyl-3-phenyl-5,6,7,8-tetrahydrobenzo-[4,5]thieno[2,3-d]pyrimidin-4(3H)-one (CAS 299919-85-0)
- 3-Benzyl-2-mercapto-5,6,7,8-tetrahydro[1]benzothieno[2,3-d]pyrimidin-4(3H)-one (CAS 59898-68-9)
- 2-mercapto-3-(3-methoxypropyl)-6,7-dihydro-5H-thiopyrano[3’,2’:4,5]thieno[2,3-d]pyrimidin-4(3H)-one (CAS 793716-06-0)
- 5-([2-[(5-Mercapto-1,3,4-thiadiazol-2-yl)thio]ethyl]thio)-1,3,4-thiadiazole-2-thiol (CAS 10486-54-1)
- (5E)-2-Mercapto-5-(1-naphthylmethylene)-3-phenyl-3,5-dihydro-4H-imidazol-4-one (CAS 61442-32-8)
- 2-mercapto-3-(2-methoxyphenyl)-3,5,6,7-tetrahydro-4H-cyclopenta[4,5]thieno[2,3-d]pyrimidin-4-one (CAS 497078-59-8)
Recommended Standards
- 2-{[(4-methylphenyl)methyl]sulfanyl}-5-[2-(methylsulfanyl)phenyl]-1,3,4-oxadiazole (CAS 339015-38-2)
- 2-[1-(Thiophene-2-carbonyl)piperidin-4-yl]-1,3-benzothiazole (CAS 478077-38-2)
- 2,2'-(Ethane-1,2-diylbis(oxy))bis(N-benzylethan-1-amine) (CAS 66582-26-1)
- 2,2'-(5-(tert-Butyl)-1,3-phenylene)bis(4,4-dimethyl-4,5-dihydrooxazole) (CAS 915032-89-2)
- Tert-butyl 4-(5-(ethoxycarbonyl)pyridin-2-yl)piperazine-1-carboxylate (CAS 201809-20-3)
- (6-(1H-1,2,4-Triazol-1-yl)pyridin-3-yl)boronic acid (CAS 883231-07-0)
- Mavacamten (CAS 1642288-47-8)
- 1-(2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)ethyl)-1H-imidazole-4-carboxylic acid (CAS 1696540-75-6)
- 2-Propenoic acid, 2-methyl-, polymer with 1,3-butadiene, N-(methoxymethyl)-2-methyl-2-propenamide and 2-propenenitrile (CAS 73383-66-1)
- 2’,5’-Dimethyl-2’H-[1,3’-bipyrazole]-4’-carboxylic Acid (CAS 1152565-59-7)
- Heptyl formate (CAS 112-23-2)
- 1,3-Dimethyl-6-(methylthio)cyclohepta[c]pyrrole (CAS 71190-29-9)
- Ethyl 5-(pyridin-2-yl)-1,3,4-oxadiazole-2-carboxylate (CAS 900322-55-6)
- Semaglutide impurity 47 (CAS CATO-C4X-222647)
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