3-(4-Chlorophenyl)-2-((2-(4-chlorophenyl)-2-oxoethyl)thio)-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidin-4(3H)-one CAS 573930-44-6
| CAS No. | 573930-44-6 |
| Molecular Formula | C24H18Cl2N2O2S2 |
| Molecular Weight | 501.45 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 3-(4-Chlorophenyl)-2-((2-(4-chlorophenyl)-2-oxoethyl)thio)-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidin-4(3H)-one.
CATO supplies 3-(4-Chlorophenyl)-2-((2-(4-chlorophenyl)-2-oxoethyl)thio)-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidin-4(3H)-one (CAS 573930-44-6), a certified reference material (molecular formula C24H18Cl2N2O2S2, MW 501.45 g/mol) for analytical method development and quality control.
Owing to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution, 3-(4-Chlorophenyl)-2-((2-(4-chlorophenyl)-2-oxoethyl)thio)-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidin-4(3H)-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 501.45 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C24H18Cl2N2O2S2 |
| Molecular Weight | 501.45 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Related Chlorophenyl Standards
- 3-(4-Chlorophenyl)-2-((2-(2-chlorophenyl)-2-oxoethyl)thio)-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidin-4(3H)-one (CAS 573940-83-7)
- (5-((4-Chlorophenyl)sulfonyl)-1-methyl-3-phenyl-1H-pyrazol-4-yl)methyl 4-chlorobenzoate (CAS 318248-33-8)
- Methyl 4-((3-(4-chlorophenyl)-5-(2,3-dichlorophenyl)-6-oxo-5,6-dihydropyridazin-1(4H)-yl)methyl)benzoate (CAS 344282-79-7)
- (2E)-1-[4-(4-Chlorophenyl)piperazin-1-yl]-3-{4-[(2,4-dichlorophenyl)methoxy]phenyl}prop-2-en-1-one (CAS 477888-83-8)
- 2-((2-((4-Chlorophenyl)sulfonamido)phenyl)thio)-N-(2,4-dichlorophenyl)acetamide (CAS 477869-03-7)
- 3-(4-(2-(3-(4-Chlorophenyl)-1,2,4-oxadiazol-5-yl)-2-(4-methoxyphenyl)ethyl)phenyl)isoxazole-5-carboxylic acid (CAS 1373156-28-5)
- N-(2-(((4-chlorophenyl)sulfonyl)methyl)-4-(pyrrolidine-1-carbonyl)phenyl)-4-fluorobenzamide (CAS 339101-90-5)
- 2-((4-(2-Chlorophenyl)-3-cyano-6-phenylpyridin-2-yl)thio)-N-(3-nitrophenyl)acetamide (CAS 332162-77-3)
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Why CATO?
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