3-Methyl-6,7,8,9-tetrahydro-5H-benzo[4,5]thieno[2,3-d]thiazolo[3,2-a]pyrimidin-5-one CAS 52881-24-0
| CAS No. | 52881-24-0 |
| Molecular Formula | C13H12N2OS2 |
| Molecular Weight | 276.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 3-Methyl-6,7,8,9-tetrahydro-5H-benzo[4,5]thieno[2,3-d]thiazolo[3,2-a]pyrimidin-5-one (CAS 52881-24-0), a certified reference material (molecular formula C13H12N2OS2, MW 276.38 g/mol) for analytical method development and quality control.
Structurally, 3-Methyl-6,7,8,9-tetrahydro-5H-benzo[4,5]thieno[2,3-d]thiazolo[3,2-a]pyrimidin-5-one (C13H12N2OS2) contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 276.38 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C13H12N2OS2 |
| Molecular Weight | 276.38 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.) | 1972 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Related Methyl Standards
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Recommended Standards
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- 2,3,4-Trimethoxy-6-(trifluoromethyl)pyridine (CAS 1214345-69-3)
- 1-(3,4-Difluorophenyl)-2-methylprop-2-en-1-amine (CAS 1512915-05-7)
- 2-Acetamido-4-(benzyloxy)-4-oxobutanoic acid (CAS 10144-33-9)
- (5-p-Tolyl-[1,3,4]oxadiazol-2-ylsulfanyl)-acetic acid (CAS 84160-39-4)
- 8-chloro-6-fluoro-5-methyl-1,2,3,4-tetrahydroquinoline (CAS 1862410-77-2)
- 1,1,1-trifluoro-2-methoxyethane 1,1,1-tris(fluoranyl)-2-methoxy-ethane 460-43-5 A826974 (CAS 460-43-5)
- 3-Bromo-5-methoxy-4-(2-oxo-2-(piperidin-1-yl)ethoxy)benzaldehyde (CAS 1156804-80-6)
- 2-((8-(Trifluoromethyl)quinolin-4-yl)thio)acetic acid (CAS 874606-36-7)
- Tetrabutylammonium Bis(1,3-dithiole-2-thione-4,5-dithiolato)nickel(III) Complex (CAS 68401-88-7)
- Tirzepatide Impurity 36 (CAS CATO-C4X-324036)
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