3-(4-Fluoro-3-methylphenyl)thieno[3,2-d]pyrimidine-2,4(1H,3H)-dione CAS 1255781-56-6
| CAS No. | 1255781-56-6 |
| Molecular Formula | C13H9FN2O2S |
| Molecular Weight | 276.29 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-Fluoro-3-methylphenyl)thieno[3,2-d]pyrimidine-2,4(1H,3H)-dione.
3-(4-Fluoro-3-methylphenyl)thieno[3,2-d]pyrimidine-2,4(1H,3H)-dione (CAS 1255781-56-6), molecular formula C13H9FN2O2S and molecular weight 276.29 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C13H9FN2O2S, 3-(4-Fluoro-3-methylphenyl)thieno[3,2-d]pyrimidine-2,4(1H,3H)-dione contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 276.29 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
As a certified reference material (CRM), 3-(4-Fluoro-3-methylphenyl)thieno[3,2-d]pyrimidine-2,4(1H,3H)-dione 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 | C13H9FN2O2S |
| Molecular Weight | 276.29 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Fluoro Standards
- 6-Fluoro-1-(phenylsulfonyl)-1H-pyrrolo[2,3-b]pyridine (CAS 1001070-29-6)
- 3-(4-Fluoro-2-methylphenyl)thieno[3,2-d]pyrimidine-2,4(1H,3H)-dione (CAS 1255781-50-0)
- 1-(3-Fluoro-4-methylphenyl)-6-mercapto-1H-pyrazolo[3,4-d]pyrimidin-4(5H)-one (CAS 1416342-45-4)
- 1-(4-Fluoro-2-methylphenyl)-6-mercapto-1H-pyrazolo[3,4-d]pyrimidin-4(5H)-one (CAS 1416348-36-1)
- 4-fluoro-1-(phenylsulfonyl)-1H-pyrrolo[2,3-b]pyridine (CAS 651744-26-2)
- 6-fluoro-1-(2-fluorophenyl)-2-(methylsulfanyl)-1H-1,3-benzodiazole (CAS 1461708-49-5)
- Methyl 2-fluoro-2-(2-fluoro-[1,1'-biphenyl]-4-yl)propanoate (CAS 863224-87-7)
- 3-(1-(3-Fluoro-4-methylphenyl)-3,5-dimethyl-1H-pyrazol-4-yl)propanoic acid (CAS 1416341-55-3)
Recommended Standards
- 3-(Ethoxycarbonyl)-1-(2-methylphenyl)-4,5-dihydro-1h-pyrazole-5-carboxylic acid (CAS 1264041-11-3)
- 3-(2-Fluorobenzyl)thieno[3,2-d]pyrimidine-2,4(1H,3H)-dione (CAS 1255777-62-8)
- 3-(Ethoxycarbonyl)-1-(3-methylphenyl)-4,5-dihydro-1h-pyrazole-5-carboxylic acid (CAS 1264046-26-5)
- Ethyl 4-hydroxy-2-oxo-1-propyl-1,2-dihydro-1,8-naphthyridine-3-carboxylate (CAS 1253791-84-2)
- (4-(4-Bromophenyl)-1H-pyrrol-3-yl)(3,4-dimethoxyphenyl)methanone (CAS 478031-38-8)
- Methyl 3-[3-(2-chloroacetyl)-2,5-dimethyl-1h-pyrrol-1-yl]propanoate (CAS 757219-83-3)
- 5-(Benzyloxy)-3,4-dihydroquinazolin-4-one (CAS 1432681-49-6)
- N-((1-Methyl-1H-imidazol-2-yl)methyl)ethanamine (CAS 642075-18-1)
- 3-(P-tolylthio)propane-1-sulfonyl chloride (CAS 1375068-13-5)
- 5-[(4-chloro-2-fluorophenyl)methyl]-4-methyl-1,3-thiazol-2-amine hydrobromide (CAS 1795494-04-0)
- 4-Amino-2-chloro-5-nitrobenzoic acid (CAS 82378-89-0)
- Ethyl 3-(4-((1,4-dioxa-8-azaspiro[4.5]Decan-8-yl)methyl)benzoyl)benzoate (CAS 898757-68-1)
- (E)-[(3-Chloro-1-benzothiophen-2-yl)methylidene][(2-fluorophenyl)methoxy]amine (CAS 477859-24-8)
- Semaglutide impurity 84 (CAS CATO-C4X-222684)
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