Benzo[b]thiophene-5-carbaldehyde 1,1-dioxide CAS 933689-26-0
| CAS No. | 933689-26-0 |
| Molecular Formula | C9H6O3S |
| Molecular Weight | 194.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
CATO supplies Benzo[b]thiophene-5-carbaldehyde 1,1-dioxide (CAS 933689-26-0), a certified reference material (molecular formula C9H6O3S, MW 194.21 g/mol) for analytical method development and quality control.
Structurally, Benzo[b]thiophene-5-carbaldehyde 1,1-dioxide (C9H6O3S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 194.21 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.
Physical & Chemical Properties
| Molecular Formula | C9H6O3S |
| Molecular Weight | 194.21 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Sulfur Atoms | 1 |
Related Benzo Standards
- Methyl Benzo[c][1,2,5]thiadiazole-5-carboxylate (CAS 175204-21-4)
- Benzo[b]thiophene-6-carbaldehyde 1,1-dioxide (CAS 2226039-40-1)
- Benzo[c][1,2,5]thiadiazole-5-carbohydrazide (CAS 98550-17-5)
- Methyl Benzo[c][1,2,5]thiadiazole-4-carboxylate (CAS 42816-79-5)
- 2-(Benzo[d][1,3]dioxol-5-yl)butan-2-ol (CAS 119054-38-5)
- 1-(Benzo[d][1,3]dioxol-5-yl)-2-methylpropan-2-ol (CAS 23037-64-1)
- 1-(Benzo[d][1,3]dioxol-5-yl)butan-1-ol (CAS 6890-31-9)
- 4-(Benzo[d][1,3]dioxol-5-yl)butan-1-ol (CAS 97664-49-8)
Recommended Standards
- Acibenzolar Acid Impurity 6 (CAS 23621-08-1)
- 7-Nitrobenzo[b]thiophen-3-amine (CAS 348617-91-4)
- 7-Hydroxybenzo[b]thiophene-2-carboxylic acid (CAS 88791-09-7)
- Diethyl Butylphosphonate (CAS 2404-75-3)
- (S)-N1-(1-Benzylpiperidin-3-yl)-N1-cyclopropylethane-1,2-diamine (CAS 1353999-91-3)
- Cyclodecane-1,2-dione (CAS 96-01-5)
- N-(2,3-dimethylphenyl)-2-((4-phenyl-5-((p-tolylamino)methyl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 332907-06-9)
- (3-Aminopiperidin-1-yl)(3,5-dimethylisoxazol-4-yl)methanone (CAS 1249154-04-8)
- 5-Isopropyl-2,3-dihydro-1H-inden-1-amine (CAS 812694-95-4)
- 1-((4-Chlorobenzyl)oxy)-2-phenyl-1H-benzo[d]imidazole (CAS 338786-83-7)
- Bicalutamide EP Impurity F (CAS CATO-C4X-10137)
- 3-Bromo-2-fluoro-5-nitrobenzoic acid (CAS 1526564-53-3)
- 2-(1-Hydroxyethyl)-1H-benzo[d]imidazole-5-sulfonic acid hydrochloride (CAS 1158293-64-1)
- Experimental Allergic Encephalitogenic Peptide (CAS 29705-92-8)
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