Dihydrothiophene-2,5-dione CAS 3194-60-3
| CAS No. | 3194-60-3 |
| Molecular Formula | C4H4O2S |
| Molecular Weight | 116.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Dihydrothiophene-2,5-dione is closely related to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Dihydrothiophene-2,5-dione (CAS 3194-60-3), molecular formula C4H4O2S and molecular weight 116.14 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C4H4O2S, Dihydrothiophene-2,5-dione contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 116.14 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
CATO manufactures Dihydrothiophene-2,5-dione under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C4H4O2S |
| Molecular Weight | 116.14 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1957 |
| Sulfur Atoms | 1 |
Related Dihydrothiophene Standards
- 2,5-Dihydrothiophene-3-carbaldehyde (CAS 113772-16-0)
- 2,3-dihydrothiophene 1,1-dioxide (CAS 1192-16-1)
- 2,5-Dihydrothiophene 1-oxide (CAS 14852-22-3)
- 2,5-dihydrothiophene-3-carboxylic acid (CAS 98508-62-4)
- 4,5-dihydrothiophene-2-carboxylic acid (CAS 86610-33-5)
- 3-Methyl-2,5-dihydrothiophene-1,1-dioxide (CAS 1193-10-8)
- 2-Methyl-2,5-dihydrothiophene 1,1-dioxide (CAS 6007-71-2)
- 4-Methyl-2,3-dihydrothiophene 1,1-Dioxide (CAS 872-94-6)
Recommended Standards
- Dicyclohexano-18-crown-6 (CAS 29515-99-9)
- DL-Proline-2-d1 (CAS 282729-06-0)
- Cyclohexylphosphine, min. 97% (10 wt% in hexanes) (CAS 822-68-4)
- N-methyl-1,2,3,4-thiatriazol-5-amine (CAS 52098-72-3)
- 3,5,6-Trichloro-4-hydrazinylpicolinic acid (CAS 32889-74-0)
- 3-Amino-2-[(2,6-difluorophenyl)methyl]propanamide (CAS 1038360-65-4)
- 4-Chloro-N-(thiophen-2-ylmethyl)aniline (CAS 116055-27-7)
- 3,5-Dimethyl-N-(2-phenoxypropyl)aniline (CAS 1040686-76-7)
- Ethyl 5-bromo-1-(3-fluorophenyl)-1H-pyrazole-4-carboxylate (CAS 1245227-17-1)
- 2,6-Difluoro-4-nitrocinnamic acid (CAS 1807439-72-0)
- Methyl 5-(hydroxymethyl)pyrazolo[1,5-a]pyridine-3-carboxylate (CAS 474432-56-9)
- 3-Chloro-N-(4-(4-chlorophenyl)thiazol-2-yl)propanamide (CAS 99447-01-5)
- 1-Bromo-3-(3,3,3-trifluoropropoxy)benzene (CAS 1342665-29-5)
- Des-[Gly]31-Semaglutide (CAS CATO-C4X-2226156)
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