N-(2,3-Dimethylphenyl)-2-((3-ethyl-6-methyl-4-oxo-3,4,6,7-tetrahydrothieno[3,2-d]pyrimidin-2-yl)thio)acetamide CAS 851409-39-7
| CAS No. | 851409-39-7 |
| Molecular Formula | C19H23N3O2S2 |
| Molecular Weight | 389.53 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), N-(2,3-Dimethylphenyl)-2-((3-ethyl-6-methyl-4-oxo-3,4,6,7-tetrahydrothieno[3,2-d]pyrimidin-2-yl)thio)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.
CATO supplies N-(2,3-Dimethylphenyl)-2-((3-ethyl-6-methyl-4-oxo-3,4,6,7-tetrahydrothieno[3,2-d]pyrimidin-2-yl)thio)acetamide (CAS 851409-39-7), a certified reference material (molecular formula C19H23N3O2S2, MW 389.53 g/mol) for analytical method development and quality control.
N-(2,3-Dimethylphenyl)-2-((3-ethyl-6-methyl-4-oxo-3,4,6,7-tetrahydrothieno[3,2-d]pyrimidin-2-yl)thio)acetamide (C19H23N3O2S2) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
Physical & Chemical Properties
| Molecular Formula | C19H23N3O2S2 |
| Molecular Weight | 389.53 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 2 |
Related N Standards
- N-(2,4-Dimethylphenyl)-2-((3-ethyl-6-methyl-4-oxo-3,4,6,7-tetrahydrothieno[3,2-d]pyrimidin-2-yl)thio)acetamide (CAS 851409-41-1)
- N-(2,4-Dimethylphenyl)-2-((3-(2-hydroxyethyl)-4-oxo-3,4-dihydrothieno[3,2-d]pyrimidin-2-yl)thio)acetamide (CAS 1798672-20-4)
- N-(2,4-Dimethylphenyl)-2-{4-oxo-7-phenyl-3H,4H-thieno[3,2-d]pyrimidin-3-yl}acetamide (CAS 1105223-83-3)
- N-(2,6-Dimethylphenyl)-2-{4-oxo-7-phenyl-3H,4H-thieno[3,2-d]pyrimidin-3-yl}acetamide (CAS 1105223-88-8)
- N-(2,5-dimethylphenyl)-2-(4-oxo-7-phenylthieno[3,2-d]pyrimidin-3(4H)-yl)acetamide (CAS 1105235-28-6)
- N-(3,4-Dimethylphenyl)-2-{4-oxo-7-phenyl-3H,4H-thieno[3,2-d]pyrimidin-3-yl}acetamide (CAS 1105235-79-7)
- N-(2,3-dimethylphenyl)-3-(3-(3-(trifluoromethyl)phenyl)-1,2,4-oxadiazol-5-yl)propanamide (CAS 866040-01-9)
- N-(3,4-Dimethylphenyl)-2-((4-((2-hydroxybenzylidene)amino)phenyl)thio)acetamide (CAS 765285-07-2)
Recommended Standards
- Ethyl 6-ethyl-2-(3-phenylthioureido)-4,5,6,7-tetrahydrothieno[2,3-c]pyridine-3-carboxylate (CAS 368888-90-8)
- Clomiphene Impurity 1 (CAS 73404-00-9)
- N-(4-Aminobutyl)-N-(2-(thiophen-2-yl)ethyl)isoquinoline-5-sulfonamide (CAS 651307-36-7)
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- 2-Methyl-2-(trifluoromethoxy)propanoic acid (CAS 2252275-09-3)
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