2-(4-(2-Chlorophenyl)piperazin-1-yl)-7-(o-tolyl)thieno[3,2-d]pyrimidin-4(1H)-one CAS 1243025-61-7
| CAS No. | 1243025-61-7 |
| Molecular Formula | C23H21ClN4OS |
| Molecular Weight | 436.96 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-(4-(2-Chlorophenyl)piperazin-1-yl)-7-(o-tolyl)thieno[3,2-d]pyrimidin-4(1H)-one (C23H21ClN4OS) 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; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
2-(4-(2-Chlorophenyl)piperazin-1-yl)-7-(o-tolyl)thieno[3,2-d]pyrimidin-4(1H)-one (CAS 1243025-61-7), molecular formula C23H21ClN4OS and molecular weight 436.96 g/mol, is a CATO reference standard with documented purity and traceability.
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 | C23H21ClN4OS |
| Molecular Weight | 436.96 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Chlorophenyl Standards
- 2-(4-(3-Chlorophenyl)piperazin-1-yl)-7-(p-tolyl)thieno[3,2-d]pyrimidin-4(1H)-one (CAS 1226429-62-4)
- 2-[4-(2-Chlorophenyl)piperazin-1-yl]-7-(4-methylphenyl)-3H,4H-thieno[3,2-d]pyrimidin-4-one (CAS 1226450-27-6)
- 2-[4-(3-Chlorophenyl)piperazin-1-yl]-7-(3-methylphenyl)-3H,4H-thieno[3,2-d]pyrimidin-4-one (CAS 1242883-94-8)
- 7-(4-Chlorophenyl)-2-(4-(m-tolyl)piperazin-1-yl)thieno[3,2-d]pyrimidin-4(3H)-one (CAS 1242964-70-0)
- 2-(4-(2-Chlorophenyl)piperazin-1-yl)-7-(m-tolyl)thieno[3,2-d]pyrimidin-4(3H)-one (CAS 1243023-55-3)
- 7-(2-Chlorophenyl)-2-[4-(3-methylphenyl)piperazin-1-yl]-3H,4H-thieno[3,2-d]pyrimidin-4-one (CAS 1243101-27-0)
- (5E)-5-({2-[(4-chlorophenyl)sulfanyl]-5-nitrophenyl}methylidene)-3-ethyl-2-sulfanylidene-1,3-thiazolidin-4-one (CAS 301193-99-7)
- 4-(3-Chlorophenyl)-5-[3-(morpholine-4-sulfonyl)phenyl]-4H-1,2,4-triazole-3-thiol (CAS 721418-75-3)
Recommended Standards
- PF-5274857 (CAS 1373615-35-0)
- 6-((4-Fluorophenyl)amino)-2,3-dimethylquinoxaline-5,8-dione (CAS 14334-06-6)
- 2-(5-((4-Chlorobenzyl)thio)-4-ethyl-4H-1,2,4-triazol-3-yl)thieno[2,3-b]quinoline (CAS 478260-37-6)
- 1226429-03-3 2-(4-benzylpiperazin-1-yl)-7-(4-chlorophenyl)thieno[3,2-d]pyrimidin-4(3H)-one KS-00003JRW (CAS 1226429-03-3)
- 4-Bromo-2,5-dimethoxybenzene-1-sulfonyl chloride (CAS 1246776-82-8)
- tert-Butyl spiro[isoindoline-1,4'-piperidine]-1'-carboxylate (CAS 920023-55-8)
- 2-[4-(3,4-Dichlorobenzyloxy)]phenylethyl methanethiosulfonate (CAS 887354-40-7)
- Methyl 2-bromo-5-chlorothiazole-4-carboxylate (CAS 1053655-63-2)
- 4,6-Dihydro-1H,3H-furo[3,4-c]furan-1,3-dione-d4 (CAS 1643544-03-9)
- 2-(O-tolyl)propan-1-ol (CAS 62835-97-6)
- 2-(2-(4-(Furan-2-carbonyl)piperazin-1-yl)-2-oxoethoxy)benzonitrile (CAS 902938-97-0)
- 6-Bromo-3-(1-methylcyclopropyl)-[1,2,4]triazolo[4,3-a]pyridine hydrochloride (CAS 1207533-66-1)
- Methyl 2-(chloromethyl)pyridine-4-carboxylate (CAS 125104-36-1)
- Acetyl tetrapeptide-9(Dermican LS 9837) (CAS 928006-50-2)
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