2,2'-Methylenebis(5-(4-chlorophenyl)thieno[2,3-d]pyrimidin-4(3h)-one) CAS 729578-85-2
| CAS No. | 729578-85-2 |
| Molecular Formula | C25H14Cl2N4O2S2 |
| Molecular Weight | 537.44 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C25H14Cl2N4O2S2, 2,2'-Methylenebis(5-(4-chlorophenyl)thieno[2,3-d]pyrimidin-4(3h)-one) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 537.44 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.
2,2'-Methylenebis(5-(4-chlorophenyl)thieno[2,3-d]pyrimidin-4(3h)-one) (CAS 729578-85-2), molecular formula C25H14Cl2N4O2S2 and molecular weight 537.44 g/mol, is a CATO reference standard with documented purity and traceability.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), 2,2'-Methylenebis(5-(4-chlorophenyl)thieno[2,3-d]pyrimidin-4(3h)-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 | C25H14Cl2N4O2S2 |
| Molecular Weight | 537.44 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) | 20.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 2 |
Related Methylenebis Standards
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- 4,4'-Methylenebis(2-methoxyphenol) (CAS 3888-22-0)
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Recommended Standards
- Mometasone Furoate Impurity 40 (CAS CATO-C4X-170440)
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- (R)-3-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-2-(3,5-bis(trifluoromethyl)benzyl)propanoic acid (CAS 1260587-04-9)
- 3-Fluoro-4'-formyl-[1,1'-biphenyl]-4-carbonitrile (CAS 851340-77-7)
- n-(4-Fluorophenyl)-2-(methylamino)acetamide hydrochloride (CAS 1177317-38-2)
- 1-Iodo-2-(perfluoroethyl)cyclohexane (CAS 711-17-1)
- N-(Benzo[d][1,3]dioxol-5-ylmethyl)-2-hydroxy-7-methoxy-8-(pentyloxy)quinoline-3-carboxamide (CAS 282089-49-0)
- 5-(Pyridin-4-yl)isoxazol-3-amine (CAS 1507964-11-5)
- [[(2R,3R,4R,5R)-5-(2,4-dioxopyrimidin-1-yl)-4-fluoro-3-hydroxy-tetrahydrofuran-2-yl]methoxy-hydroxy-phosphoryl] phosphono hydrogen phosphate (CAS 66840-02-6)
- Piperidin-4-ylmethanesulfonyl fluoride hydrochloride (CAS 1820649-83-9)
- tert-butyl 3-methyl-[1,2,4]triazolo[4,3-a]pyrazine-6-carboxylate (CAS 2059999-76-5)
- Tert-butyl (S)-2-(2-aminoethyl)morpholine-4-carboxylate (CAS 1260593-51-8)
- [pGlu] Semaglutide (CAS CATO-C4X-2226288)
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