Ethyl 12-oxo-1,2,3,4,7,9,10,12-octahydro-8H-benzo[4,5]thieno[2,3-d]pyrido[1,2-a]pyrimidine-7-carboxylate CAS 329059-69-0
| CAS No. | 329059-69-0 |
| Molecular Formula | C17H20N2O3S |
| Molecular Weight | 332.42 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 332.42 g/mol gives Ethyl 12-oxo-1,2,3,4,7,9,10,12-octahydro-8H-benzo[4,5]thieno[2,3-d]pyrido[1,2-a]pyrimidine-7-carboxylate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Ethyl 12-oxo-1,2,3,4,7,9,10,12-octahydro-8H-benzo[4,5]thieno[2,3-d]pyrido[1,2-a]pyrimidine-7-carboxylate (CAS 329059-69-0), a certified reference material (molecular formula C17H20N2O3S, MW 332.42 g/mol) for analytical method development and quality control.
The molecular framework of Ethyl 12-oxo-1,2,3,4,7,9,10,12-octahydro-8H-benzo[4,5]thieno[2,3-d]pyrido[1,2-a]pyrimidine-7-carboxylate (C17H20N2O3S) is characterized by a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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), Ethyl 12-oxo-1,2,3,4,7,9,10,12-octahydro-8H-benzo[4,5]thieno[2,3-d]pyrido[1,2-a]pyrimidine-7-carboxylate 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 | C17H20N2O3S |
| Molecular Weight | 332.42 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Recommended Standards
- Ethyl ((2-hydroxy-2-(naphthalen-2-yl)ethyl)carbamothioyl)glycinate (CAS 339279-36-6)
- Ethyl 2-amino-5-[(2,4-dimethylphenyl)carbamoyl]-4-methylthiophene-3-carboxylate (CAS 329082-05-5)
- Dimethyl 2-(triisobutyl-lambda5-phosphanylidene)malonate (CAS 501939-33-9)
- Ethyl 4-(butylsulfanyl)-6-oxo-1-phenyl-1,6-dihydropyridazine-3-carboxylate (CAS 339031-45-7)
- (2S,4S)-4-(Fluoromethyl)-5-oxopyrrolidine-2-carboxylic acid (CAS 728034-36-4)
- 2-Amino-5-(cyclohexyloxy)-4-fluorobenzoic acid (CAS 1333827-63-6)
- 2-[(2-methoxyphenyl)formamido]-4-(methylsulfanyl)butanoic acid (CAS 65054-83-3)
- 3-Bromo-2-methoxypyridine hydrate (CAS 1881332-55-3)
- 2,2-Difluoro-1-(1,3-thiazol-2-yl)ethan-1-ol (CAS 1312535-16-2)
- Ethyl 4-aminopiperazine-1-carboxylate (CAS 64268-81-1)
- C-(1-Thiazol-5-ylmethyl-piperidin-4-yl)-methylamine hydrochloride (CAS 1261230-14-1)
- 3-Bromo-5-(bromomethyl)benzoic acid (CAS 1261758-98-8)
- (3α,5α,17Z)-Pregn-17(20)-en-3-ol (CAS 68199-34-8)
- Tau Peptide (301-315) trifluoroacetate salt (CAS 330456-48-9)
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