1,1-dioxo-2,5-dihydro-1$l^{6}-thiophene-3-carboxylic acid CAS 267667-78-7
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 267667-78-7 |
| Molecular Formula | C5H6O4S |
| Molecular Weight | 162.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1,1-dioxo-2,5-dihydro-1$l^{6}-thiophene-3-carboxylic acid (CAS 267667-78-7) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C5H6O4S. Molecular weight: 162.16 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C5H6O4S |
| Molecular Weight | 162.16 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2025 |
| Sulfur Atoms | 1 |
Related dioxo Standards
- n-(1,1-dioxo-1lambda6-thiolan-3-yl)formamide (CAS 54871-17-9)
- 2,2-dioxo-2λ⁶-thiaspiro[3.3]heptan-6-one (CAS 1936319-38-8)
- 2-(2,5-Dioxo-2,5-dihydro-1h-pyrrol-1-yl)-2-methylpropanenitrile (CAS 1240384-54-6)
- 2-(1,1-dioxo-1λ⁶-thietan-3-yl)acetic acid (CAS 1394319-63-1)
- 4,4-dioxo-1,4-oxathiepan-6-one (CAS 319909-11-0)
- 285978-19-0 N-[2,5-Dioxo(4-~13~C,3-~15~N)imidazolidin-4-yl]urea DTXSID20745769 (CAS 285978-19-0)
- 3-(3,6-Dioxo-3,6-dihydropyridazin-1(2H)-yl)propanenitrile (CAS 17285-16-4)
- 1-Ethyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidine-5-carbonitrile (CAS 57712-57-9)
Recommended Standards
- 1-(4-fluorophenyl)pyrazole (CAS 81329-32-0)
- 1-Fluoronaphthalen-2-ol (CAS 51417-63-1)
- 1-(3-Fluorophenyl)pyrazole (CAS 37649-86-8)
- 17-epi-Nandrolone (1.0mg/ml in Acetonitrile) (CAS 20708-81-0)
- Granisetron (CAS 109889-09-0)
- tert-Butyl (R)-2-((tert-butoxycarbonyl)amino)-5-oxohexanoate (CAS 1260595-76-3)
- 2-(3-Fluoro-4-methylphenyl)butan-2-ol (CAS 1379326-05-2)
- 2-(furan-3-ylformamido)propanoic acid (CAS 1397002-01-5)
- 2',3',4,5'-Tetrachloro-[1,1'-biphenyl]-3-carbaldehyde (CAS 1361705-72-7)
- Semaglutide impurity 276 (CAS CATO-C4X-2226276)
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