3-[(1,1-Dioxido-1,2-benzisothiazol-3-yl)amino]-phenol CAS 340028-29-7
| CAS No. | 340028-29-7 |
| Molecular Formula | C13H10N2O3S |
| Molecular Weight | 274.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-[(1,1-Dioxido-1,2-benzisothiazol-3-yl)amino]-phenol (CAS 340028-29-7), molecular formula C13H10N2O3S and molecular weight 274.30 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 3-[(1,1-Dioxido-1,2-benzisothiazol-3-yl)amino]-phenol (C13H10N2O3S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 274.30 g/mol, it falls into the medium-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).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures 3-[(1,1-Dioxido-1,2-benzisothiazol-3-yl)amino]-phenol 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 | C13H10N2O3S |
| Molecular Weight | 274.30 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Dioxido Standards
- 1,1-Dioxido-2,3-dihydrothiophen-3-yl benzenesulfonate (CAS 39582-95-1)
- 1,1-Dioxido-2,3-dihydro-4H-thieno[2,3-b]thiopyran-4-yl butyrate (CAS 339018-98-3)
- 7,7-Dioxido-5,6-dihydro-4H-thieno[2,3-b]thiopyran-4-yl isobutyrate (CAS 339018-79-0)
- 3-(1,1-Dioxido-3-oxoisothiazolidin-2-yl)benzoyl chloride (CAS 927997-68-0)
- 7,7-Dioxido-5,6-dihydro-4H-thieno[2,3-b]thiopyran-4-yl cyclopropanecarboxylate (CAS 339019-01-1)
- 3-(1,1-Dioxido-2h-naphtho[1,8-cd]isothiazol-2-yl)propanoic acid (CAS 848369-67-5)
- 3-(1,1-Dioxido-1,2-thiazinan-2-yl)-4-methylbenzoic acid (CAS 927996-01-8)
- 4-(1,1-dioxido-3-oxobenzo[d]isothiazol-2(3H)-yl)butanoic acid (CAS 10312-42-2)
Recommended Standards
- 3-((4-Hydroxyphenyl)amino)benzo[d]isothiazole 1,1-dioxide (CAS 296790-99-3)
- 3-Amino-7-methoxythieno[2,3-b]quinoline-2-carboxylic acid (CAS 462068-01-5)
- 3-((2-Hydroxyphenyl)imino)-2,3-dihydrobenzo[d]isothiazole 1,1-dioxide (CAS 314036-11-8)
- 3-Methyl-6-(5-methylthiophen-2-yl)-[1,2]oxazolo[5,4-b]pyridine-4-carboxylic acid (CAS 924191-70-8)
- Benzyl (S)-3-((tert-butoxycarbonyl)amino)-4,4-difluoropiperidine-1-carboxylate (CAS 2306246-23-9)
- Galanin Message Associated Peptide (1-41) amide trifluoroacetate salt (CAS 132699-74-2)
- 2-(4-Bromophenyl)isothiazolidine 1,1-Dioxide (CAS 71703-16-7)
- 4-(2,5-Dimethyl-1H-pyrrol-1-yl)-3-methylbenzoic acid (CAS 340312-91-6)
- N-(3-Chlorophenyl)-3,5-difluorobenzenesulfonamide (CAS 1089622-73-0)
- 2-(((6-Bromopyridin-3-yl)methyl)amino)ethanol (CAS 1353977-74-8)
- di-tert-Butyl 3-bromo-6,6-dimethylpyrrolo[3,4-c]pyrazole-2,5(4H,6H)-dicarboxylate (CAS 1330766-42-1)
- 5-(2-Chloroethyl)-3-(4-methylphenyl)-1,2,4-oxadiazole (CAS 933945-46-1)
- 1-Chloro-4-(phenylsulfinyl)benzene (CAS 2184973-82-6)
- Semaglutide impurity 97 (CAS CATO-C4X-222697)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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