Ethyl 5-(6-(3,4-dimethylphenyl)-1-methyl-2,4-dioxo-2,3,4,7-tetrahydro-1H-pyrrolo[2,3-d]pyrimidin-5-yl)-4-hydroxy-2-methylthiophene-3-carboxylate CAS 1243071-99-9
| CAS No. | 1243071-99-9 |
| Molecular Formula | C23H23N3O5S |
| Molecular Weight | 453.51 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Ethyl 5-(6-(3,4-dimethylphenyl)-1-methyl-2,4-dioxo-2,3,4,7-tetrahydro-1H-pyrrolo[2,3-d]pyrimidin-5-yl)-4-hydroxy-2-methylthiophene-3-carboxylate (CAS 1243071-99-9), molecular formula C23H23N3O5S and molecular weight 453.51 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C23H23N3O5S, Ethyl 5-(6-(3,4-dimethylphenyl)-1-methyl-2,4-dioxo-2,3,4,7-tetrahydro-1H-pyrrolo[2,3-d]pyrimidin-5-yl)-4-hydroxy-2-methylthiophene-3-carboxylate contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 453.51 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).
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 | C23H23N3O5S |
| Molecular Weight | 453.51 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 |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Ethyl Standards
- N-(3,5-Dimethylphenyl)-2-((5-((naphthalen-1-ylmethyl)thio)-1,3,4-thiadiazol-2-yl)thio)acetamide (CAS 476484-09-0)
- 5-[(2,5-Dimethylphenyl)methyl]-7-(morpholine-4-sulfonyl)-1H,2H,3H,3aH,4H,5H-pyrrolo[1,2-a]quinoxalin-4-one (CAS 1042134-66-6)
- 2-(2,4-Dimethylphenyl)-N-(2,4,5-trichlorophenyl)quinoline-4-carboxamide (CAS 332176-22-4)
- 2,6-Dimethylphenyl 2-((3-cyano-4,6-diphenylpyridin-2-yl)thio)acetate (CAS 336173-47-8)
- N-(3,5-Dimethylphenyl)-2-{[3-methyl-7-(4-methylphenyl)-4-oxo-3H,4H-thieno[3,2-d]pyrimidin-2-yl]sulfanyl}acetamide (CAS 1040631-76-2)
- N-(2,6-dimethylphenyl)-2-((3-ethyl-4-oxo-7-phenyl-3,4-dihydrothieno[3,2-d]pyrimidin-2-yl)thio)acetamide (CAS 1040660-05-6)
- N-(3,5-dimethylphenyl)-2-((3-ethyl-4-oxo-7-phenyl-3,4-dihydrothieno[3,2-d]pyrimidin-2-yl)thio)acetamide (CAS 1040660-17-0)
- N-(2,4-dimethylphenyl)-2-((3-methyl-4-oxo-7-(p-tolyl)-3,4-dihydrothieno[3,2-d]pyrimidin-2-yl)thio)acetamide (CAS 1040676-16-1)
Recommended Standards
- 2-{4-oxo-7-phenyl-3H,4H-thieno[3,2-d]pyrimidin-3-yl}-N-(4-phenoxyphenyl)acetamide (CAS 1105224-22-3)
- 2-{Carboxy-[4-(4-fluoro-phenyl)-piperazin-1-yl]-methyl}-indole-1-carboxylic acid tert-butyl ester (CAS 1260640-97-8)
- GW 501516 (CAS 317318-70-0)
- 3,5-Dimethoxy-N-(4-(1-(2-methoxyacetyl)indolin-5-yl)thiazol-2-yl)benzamide (CAS 1604821-43-3)
- (S)-2-(5-oxopyrrolidin-2-yl)acetonitrile (CAS 72479-06-2)
- (1,4-Diazepan-1-yl)(2-hydroxypyridin-3-yl)methanone (CAS 1016851-38-9)
- (R)-7-(pyridin-3-ylmethyl)tetrahydro-1H-oxazolo[3,4-a]pyrazin-3(5H)-one (CAS 1795777-84-2)
- 3-((tert-Butoxycarbonyl)amino)-2-(4-fluorobenzyl)propanoic acid (CAS 1255099-58-1)
- 2,5-Dichloro-3-(trifluoromethyl)aniline (CAS 103995-81-9)
- 3-Benzyl-6-methyl-4-oxo-3,4-dihydrofuro[2,3-d]pyrimidine-5-carboxylic acid (CAS 1023815-69-1)
- 3-Amino-3-(5-(4-bromophenyl)furan-2-yl)propanoic acid (CAS 773125-87-4)
- 2-Methyl-4,5-dihydropyrazolo[1,5-a]quinoxaline (CAS 193151-04-1)
- 4-(Methylthio)-N-(4-(methylthio)benzo[d]thiazol-2-yl)benzamide (CAS 922826-96-8)
- Steroidogenesis-Activator Polypeptide (rat) (H-8855.0500) (CAS 108563-23-1)
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