5-Ethyl-1-((2-hydroxyethoxy)methyl)-6-(phenylthio)-2-thioxo-2,3-dihydropyrimidin-4(1H)-one CAS 137897-86-0
| CAS No. | 137897-86-0 |
| Molecular Formula | C15H18N2O3S2 |
| Molecular Weight | 338.45 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Ethyl-1-((2-hydroxyethoxy)methyl)-6-(phenylthio)-2-thioxo-2,3-dihydropyrimidin-4(1H)-one (CAS 137897-86-0), molecular formula C15H18N2O3S2 and molecular weight 338.45 g/mol, is a CATO reference standard with documented purity and traceability.
5-Ethyl-1-((2-hydroxyethoxy)methyl)-6-(phenylthio)-2-thioxo-2,3-dihydropyrimidin-4(1H)-one (C15H18N2O3S2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; 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.
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 | C15H18N2O3S2 |
| Molecular Weight | 338.45 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Related Ethyl Standards
- 1-((2-Hydroxyethoxy)methyl)-5-isopropyl-6-(phenylthio)pyrimidine-2,4(1H,3H)-dione (CAS 137897-91-7)
- 3-[4-[3-(2-hydroxyethoxy)prop-1-ynyl]-1-oxo-isoindolin-2-yl]piperidine-2,6-dione (CAS 2619512-29-5)
- 3-[5-[3-(2-hydroxyethoxy)prop-1-ynyl]-1-oxo-isoindolin-2-yl]piperidine-2,6-dione (CAS 2619512-41-1)
- 1-(2-(2-Hydroxyethoxy)-2-(p-tolyl)ethyl)-3-(thiophen-2-ylmethyl)urea (CAS 1795414-23-1)
- 2-(2-(2-Hydroxyethoxy)ethoxy)ethyl dodecanoate (CAS 23328-60-1)
- 2-(2-Hydroxyethoxy)ethyl palmitate (CAS 36381-62-1)
- N-(2-(2-Hydroxyethoxy)ethyl)-4-(2-(5-nitrofuran-2-yl)vinyl)benzamide (CAS 61470-61-9)
- 3-[4-[3-(2-hydroxyethoxy)propyl]-1-oxo-isoindolin-2-yl]piperidine-2,6-dione (CAS 2599845-88-0)
Recommended Standards
- trans-4-(3,4,5-Trifluorophenyl)-trans-4'-propylbicyclohexane (CAS 131819-23-3)
- 1,2,3-Trifluoro-4-[(trans,trans)-4-propyl[1,1-bicyclohexyl]-4-yl]benzene (CAS 139056-62-5)
- 1,3-dibutyl-5-((diethylamino)methylene)pyrimidine-2,4,6(1H,3H,5H)-trione (CAS 1313712-63-8)
- Lisuride (CAS 140387-89-9)
- Ethyl 2-chloro-4-methyl-3-oxopentanoate (CAS 35391-60-7)
- 2-Bromo-4-(difluoromethyl)-5-methylpyridine (CAS 1803696-20-9)
- 3,4-Dimethylveratrole (CAS 248252-69-9)
- 5-(5-Methyl-1,2,4-oxadiazol-3-yl)pyrimidine-2,4(1H,3H)-dione (CAS 1207380-97-9)
- Mirogabalin Impurity N78 (CAS CATO-CP155178)
- Oxacillin Impurity 59 (CAS CATO-C4X-232159)
- 3,3'-((1E,1'E)-hydrazine-1,2-diylidenebis(ethan-1-yl-1-ylidene))dianiline (CAS 315670-87-2)
- n-Isobutyl-2,3-dimethylaniline (CAS 105336-23-0)
- 3-(3-Cyclobutyl-1,2,4-oxadiazol-5-yl)piperidine hydrochloride (CAS 1380300-28-6)
- Tirzepatide Impurity 45 (CAS CATO-C4X-324045)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com