2-((3-Ethyl-5,6-dimethyl-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidin-2-yl)thio)-N-(4-sulfamoylphenyl)acetamide CAS 577999-30-5
| CAS No. | 577999-30-5 |
| Molecular Formula | C18H20N4O4S3 |
| Molecular Weight | 452.57 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 2-((3-Ethyl-5,6-dimethyl-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidin-2-yl)thio)-N-(4-sulfamoylphenyl)acetamide.
CATO supplies 2-((3-Ethyl-5,6-dimethyl-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidin-2-yl)thio)-N-(4-sulfamoylphenyl)acetamide (CAS 577999-30-5), a certified reference material (molecular formula C18H20N4O4S3, MW 452.57 g/mol) for analytical method development and quality control.
Structurally, 2-((3-Ethyl-5,6-dimethyl-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidin-2-yl)thio)-N-(4-sulfamoylphenyl)acetamide (C18H20N4O4S3) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 452.57 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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-((3-Ethyl-5,6-dimethyl-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidin-2-yl)thio)-N-(4-sulfamoylphenyl)acetamide 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 | C18H20N4O4S3 |
| Molecular Weight | 452.57 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 3 |
Related Ethyl Standards
- 2,4-Dimethyl 3-{2-[4-(4-nitrophenyl)piperazin-1-yl]acetyl}-1,3-thiazolidine-2,4-dicarboxylate (CAS 1007920-63-9)
- Dimethyl 2-((2-chlorothiazol-5-yl)methyl)-2-(2-nitro-4-(trifluoromethyl)phenyl)malonate (CAS 861209-82-7)
- 1-{2,5-dimethyl-1-[4-(morpholin-4-yl)phenyl]-1H-pyrrol-3-yl}-2-{1,4-dioxa-8-azaspiro[4.5]decan-8-yl}ethane-1,2-dione (CAS 866144-08-3)
- 2-(2-(((3,5-Dimethyl-1-phenyl-1H-pyrazol-4-yl)methyl)(methyl)amino)propanamido)-5,6-dihydro-4H-cyclopenta[b]thiophene-3-carboxamide (CAS 1031789-42-0)
- Dimethyl 2-(6-ethoxy-2,2-dimethyl-3-thioxo-2,3-dihydroquinolin-4(1h)-ylidene)-1,3-dithiole-4,5-dicarboxylate (CAS 296272-53-2)
- 2-[2,5-Dimethyl-1-(3-nitrobenzoyl)-3-oxo-2,3-dihydro-1H-pyrazol-4-yl]ethyl 3-nitrobenzoate (CAS 860611-56-9)
- 2,7-Bis(3,5-dimethyl-1H-pyrazol-4-yl)benzo[lmn][3,8]phenanthroline-1,3,6,8(2H,7H)-tetraone (CAS 1521159-33-0)
- 6,6-Dimethyl-8-(4-morpholinopiperidin-1-yl)-11-oxo-6,11-dihydro-5H-benzo[b]carbazole-3-carbonitrile (CAS 1256577-71-5)
Recommended Standards
- (S)-N-((3,5-Dimethyl-1-phenyl-1H-pyrazol-4-yl)methyl)-1-tosylpyrrolidine-2-carboxamide (CAS 957012-34-9)
- 4,6-Bis(4-methoxyphenyl)-2-((4-methylbenzyl)thio)nicotinonitrile (CAS 332114-66-6)
- (S)-2-(5-((((1H-Imidazol-5-yl)methyl)amino)methyl)-2'-methyl-[1,1'-biphenyl]-2-ylcarboxamido)-4-(methylthio)butanoic acid (CAS 251577-09-0)
- N-(4,6-Bis(phenylthio)-1,3,5-triazin-2-yl)benzenesulfonamide (CAS 62752-07-2)
- 6-Chloro-2-(methylthio)-N-phenylpyrimidin-4-amine (CAS 86626-97-3)
- 4-Cyclopropoxy-N1,N1,N3,N3-tetramethylbenzene-1,3-diamine (CAS 1243374-86-8)
- 2-(2-Chlorobenzoyl)-5-methylpyridine (CAS 1106005-45-1)
- 6-Bromo-2,3-dihydrospiro[indene-1,2'-pyrrolidin]-5'-one (CAS 151484-79-6)
- 1-Tosyl-2,3-dihydro-1H-pyrrole (CAS 130719-30-1)
- Tetrabenazine Impurity 41 (CAS 4602-81-7)
- N-(tert-Butyl)-4-piperidinecarboxamidehydrochloride (CAS 540494-01-7)
- 66455-29-6 Empigen BB Betaines, C12-14-alkyldimethyl EINECS 266-368-1 (CAS 66455-29-6)
- N-Ethynylpyrrole (CAS 139565-93-8)
- Neuropeptide Y (human, rat) trifluoroacetate salt (CAS 90880-35-6)
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