6-Ethyl-3-hydroxy-2-methylthieno[2,3-d]pyrimidin-4(3H)-one CAS 823233-87-0
| CAS No. | 823233-87-0 |
| Molecular Formula | C9H10N2O2S |
| Molecular Weight | 210.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies 6-Ethyl-3-hydroxy-2-methylthieno[2,3-d]pyrimidin-4(3H)-one (CAS 823233-87-0), a certified reference material (molecular formula C9H10N2O2S, MW 210.25 g/mol) for analytical method development and quality control.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, 6-Ethyl-3-hydroxy-2-methylthieno[2,3-d]pyrimidin-4(3H)-one is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 210.25 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), 6-Ethyl-3-hydroxy-2-methylthieno[2,3-d]pyrimidin-4(3H)-one 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 | C9H10N2O2S |
| Molecular Weight | 210.25 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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Recommended Standards
- 6-(Methylsulfonyl)-2,3-dihydro-1H-inden-1-one (CAS 255895-80-8)
- 6-Propylthieno[2,3-d]pyrimidine-2,4(1H,3H)-dione (CAS 902765-59-7)
- 5-methyl-5-phenylpiperidin-2-one (CAS 7149-39-5)
- 7-Methoxy-2-(methylthio)benzofuran-3(2H)-one (CAS 51175-51-0)
- Ethyl 5-(4-bromophenyl)-1H-pyrazole-3-carboxylate (CAS 1048930-76-2)
- methyl 4-(trifluoromethyl)benzene-1-carboximidate (CAS 137714-33-1)
- octahydropyrano[3,4-c]pyrrole hydrochloride (CAS 1909306-44-0)
- TetraiSopropyl (2,5-dihydroxy-1,4-phenylene)bis(phosphonate) (CAS 1420992-09-1)
- 6-(4-t-Butylphenyl)-6-oxohexanoic acid (CAS 898791-43-0)
- n-(5-Fluoropyridin-2-yl)-1,3-thiazole-4-carboxamide (CAS 1498694-03-3)
- 2-Benzyl-5-phenylfuran (CAS 19261-38-2)
- Diethyl aspartate (CAS 43101-48-0)
- Ethyl N-(3-nitrophenyl)-N-(2-((5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidin-4-yl)thio)acetyl)glycinate (CAS 332161-32-7)
- Semaglutide impurity 92 (CAS CATO-C4X-222692)
Why CATO?
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