5-(2-Furyl)thieno[2,3-d]pyrimidin-4(3H)-one CAS 256507-00-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 256507-00-3 |
| Molecular Formula | C10H6N2O2S |
| Molecular Weight | 218.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-(2-Furyl)thieno[2,3-d]pyrimidin-4(3H)-one (CAS 256507-00-3) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C10H6N2O2S. Molecular weight: 218.23 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C10H6N2O2S |
| Molecular Weight | 218.23 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 |
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- 4-[5-(2-Furyl)-1,3,4-oxadiazol-2-yl]piperidine (CAS 1082855-57-9)
- 6-(5-Methyl-2-furyl)-1,5,6,7-tetrahydro-4H-indazol-4-one (CAS 1428139-68-7)
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Recommended Standards
- 4-Sulfanylidene-8-oxa-3,5-diazatricyclo[7.4.0.0^{2,7}]trideca-1(9),2(7),10,12-tetraen-6-one (CAS 951304-83-9)
- 5-[2-(4-fluorophenyl)ethenyl]-3-methyl-1,2-oxazol-4-amine (CAS 2135539-69-2)
- 4-(Ethylsulfamoyl)-1h-pyrrole-2-carboxylic acid (CAS 937627-33-3)
- 5-ROX NHS Ester (CAS 209734-74-7)
- alpha-Tocopherol Phosphate Disodium Salt (CAS 90940-45-7)
- N-Butylhydroxylamine hydrochloride (CAS 135589-41-2)
- methyl 5-methyl-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridine-2-carboxylate (CAS CATO-C4X-1063141)
- Ethyl 2-((2-methylquinolin-4-yl)amino)-2-oxoacetate (CAS 710283-58-2)
- 2-(Thiophen-2-yl)-1,3-thiazolidine-4-carboxylic acid (CAS 32451-19-7)
- Semaglutide impurity 229 (CAS CATO-C4X-2226229)
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