4-((2-Chlorophenyl)thio)-2,3-dihydro-4H-thieno[2,3-b]thiopyran 1,1-dioxide CAS 339019-26-0
| CAS No. | 339019-26-0 |
| Molecular Formula | C13H11ClO2S3 |
| Molecular Weight | 330.87 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-((2-Chlorophenyl)thio)-2,3-dihydro-4H-thieno[2,3-b]thiopyran 1,1-dioxide (CAS 339019-26-0), molecular formula C13H11ClO2S3 and molecular weight 330.87 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C13H11ClO2S3, 4-((2-Chlorophenyl)thio)-2,3-dihydro-4H-thieno[2,3-b]thiopyran 1,1-dioxide contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 330.87 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 4-((2-Chlorophenyl)thio)-2,3-dihydro-4H-thieno[2,3-b]thiopyran 1,1-dioxide 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 | C13H11ClO2S3 |
| Molecular Weight | 330.87 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 3 |
Related Chlorophenyl Standards
- 4-((3-Chlorophenyl)thio)-5,6-dihydro-4H-thieno[2,3-b]thiopyran 7,7-dioxide (CAS 339019-27-1)
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Recommended Standards
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- 3-Isobutylazetidine (CAS 89854-62-6)
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- Ethyl 2-amino-5-(3-oxopiperazin-1-yl)benzoate (CAS 1308033-63-7)
- 6-Bromo-2,2-dimethyl-3,4-dihydro-2h-benzo[b][1,4]oxazine (CAS 136545-05-6)
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- semaglutide (CAS 782487-28-9)
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