2-(Ethylthio)-7,9-dimethylpyrido[3',2':4,5]thieno[3,2-d]pyrimidin-4(3H)-one CAS 672950-80-0
| CAS No. | 672950-80-0 |
| Molecular Formula | C13H13N3OS2 |
| Molecular Weight | 291.39 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 2-(Ethylthio)-7,9-dimethylpyrido[3',2':4,5]thieno[3,2-d]pyrimidin-4(3H)-one (CAS 672950-80-0), a certified reference material (molecular formula C13H13N3OS2, MW 291.39 g/mol) for analytical method development and quality control.
The molecular framework of 2-(Ethylthio)-7,9-dimethylpyrido[3',2':4,5]thieno[3,2-d]pyrimidin-4(3H)-one (C13H13N3OS2) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C13H13N3OS2 |
| Molecular Weight | 291.39 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 2 |
Related Ethylthio Standards
- Ethyl 2-(ethylthio)-4-thiocyanatopyrimidine-5-carboxylate (CAS 6628-05-3)
- 2-(Ethylthio)-6-nitro-4-(trifluoromethyl)benzamide (CAS 1823184-28-6)
- 1-(5-(Ethylthio)-1,3,4-thiadiazol-2-yl)-3-(p-tolyl)urea (CAS 898461-47-7)
- 1-Benzyl-2-(ethylthio)-5-phenyl-1H-imidazole (CAS 1207037-84-0)
- 2-(Ethylthio)-5-phenyl-1-(o-tolyl)-1H-imidazole (CAS 1207043-09-1)
- 2-(Ethylthio)-1-((4-fluorophenyl)sulfonyl)-4,5-dihydro-1H-imidazole (CAS 868216-52-8)
- 7-(Ethylthio)-1-(4-fluorophenyl)-4-methyl-1H-pyrazolo[3,4-d]pyridazine (CAS 1105236-38-1)
- Ethyl 2-(2-(ethylthio)propyl)-4,6-dioxocyclohexane-1-carboxylate (CAS 90498-50-3)
Recommended Standards
- 2-(4-Methoxyphenyl)-N-(naphthalen-1-ylmethyl)ethan-1-amine (CAS 416889-35-5)
- 2,3-Dimethyl-3-(3-pyrrolinomethyl) benzophenone (CAS 898790-13-1)
- 2-(3,3-Diethylureido)-N,N-diethylbenzamide (CAS 78554-91-3)
- 2,4-Dimethyl-4-(3-pyrrolinomethyl) benzophenone (CAS 898764-13-1)
- 2-[({4-[(4-Fluorobenzyl)sulfanyl]phenyl}imino)methyl]benzenol (CAS 329779-43-3)
- potassium 2-[(4-oxopent-2-en-2-yl)amino]acetate (CAS 32085-81-7)
- 5-(4-Chlorophenyl)-4-{2'-fluoro-4'-propyl-[1,1'-biphenyl]-4-yl}pyrimidine-2-thiol (CAS 478032-55-2)
- ethyl 2-methylmorpholine-2-carboxylate hydrochloride (CAS 2060062-09-9)
- 4-Methoxy-3-methylbenzoic Acid (CAS 6880-04-2)
- N,N-Diallyl-3-pyrrolidinamine dihydrochloride (CAS 1220020-24-5)
- 6-Methoxy-2-naphthaleneacetic Acid-D3 (CAS 1189427-82-4)
- 4-(Aminomethyl)picolinamide (CAS 1006618-86-5)
- 3,3,4,4-Tetramethyl-3,4-dihydro-2H-[1,3'-biquinolin]-2-one (CAS 918645-81-5)
- Fragment-[9-31]-Semaglutide (CAS CATO-C4X-2226181)
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