4-((4-Isopropylphenyl)thio)-5,6-dihydro-4H-thieno[2,3-b]thiopyran 7,7-dioxide CAS 339019-25-9
| CAS No. | 339019-25-9 |
| Molecular Formula | C16H18O2S3 |
| Molecular Weight | 338.51 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 4-((4-Isopropylphenyl)thio)-5,6-dihydro-4H-thieno[2,3-b]thiopyran 7,7-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.
4-((4-Isopropylphenyl)thio)-5,6-dihydro-4H-thieno[2,3-b]thiopyran 7,7-dioxide (CAS 339019-25-9), molecular formula C16H18O2S3 and molecular weight 338.51 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4-((4-Isopropylphenyl)thio)-5,6-dihydro-4H-thieno[2,3-b]thiopyran 7,7-dioxide (C16H18O2S3) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 338.51 g/mol, it falls into the moderately-high-molecular-weight range. 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.
Physical & Chemical Properties
| Molecular Formula | C16H18O2S3 |
| Molecular Weight | 338.51 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 |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Sulfur Atoms | 3 |
Related Isopropylphenyl Standards
- N-(4-isopropylphenyl)-2-(4-(pyridin-2-yl)piperazin-1-yl)acetamide (CAS 303091-94-3)
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- 2-(4-Isopropylphenyl)-6,8-dimethylquinoline-4-carbonyl chloride (CAS 1160262-70-3)
- 3-((4-Isopropylphenyl)amino)-2-phenyl-1H-inden-1-one (CAS 1023551-34-9)
- 4-(4-Isopropylphenyl)-5-methyl-2-(2-phenoxyethyl)-2,4-dihydro-3H-1,2,4-triazol-3-one (CAS 860785-34-8)
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Recommended Standards
- (R)-N,3-Dimethyl-N-(4-(4-methylpiperidin-1-yl)butan-2-yl)benzenesulfonamide (CAS 195199-95-2)
- 4-(2,5-dimethylphenyl)-1-sulfanyl-4H,5H-[1,2,4]triazolo[4,3-a]quinazolin-5-one (CAS 742094-72-0)
- (4-(((4-Methylthiazol-2-yl)thio)methyl)piperidin-1-yl)(thiophen-3-yl)methanone (CAS 1421477-21-5)
- 17α-Hydroxy Progesterone-d8 (CAS 850023-80-2)
- 2-((Azetidin-3-yloxy)methyl)pyrimidine (CAS 1343219-30-6)
- Methyl N-(methylsulfonyl)-N-(3-nitrophenyl)glycinate (CAS 532417-56-4)
- N-(2-Methoxyethyl)-α-methyl-1,3-benzodioxole-5-ethanamine (CAS 74698-44-5)
- 1,1,1-Trifluoro-3-(3-methylpyridin-2-yl)propan-2-one (CAS 219726-55-3)
- 6-Chloro-5-methoxypyridin-2-amine (CAS 886371-76-2)
- Tert-butyl 2-(4-hydroxyphenyl)-1-oxa-7-azaspiro[4.5]Decane-7-carboxylate (CAS 1206970-20-8)
- 2-Amino-8-methyl-1,7-dihydro-6H-purin-6-one (CAS 23662-75-1)
- 6,7-Dimethoxy-1-oxo-1,2-dihydroisoquinoline-4-carbonitrile (CAS 18029-60-2)
- Polynoxylin (CAS 9011-05-6)
- Semaglutide Impurity 183 (CAS 159541-28-3)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com