3-Ethoxybenzo[d]isothiazole 1,1-dioxide CAS 18712-15-7
| CAS No. | 18712-15-7 |
| Molecular Formula | C9H9NO3S |
| Molecular Weight | 211.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies 3-Ethoxybenzo[d]isothiazole 1,1-dioxide (CAS 18712-15-7), a certified reference material (molecular formula C9H9NO3S, MW 211.24 g/mol) for analytical method development and quality control.
Structurally, 3-Ethoxybenzo[d]isothiazole 1,1-dioxide (C9H9NO3S) 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 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 211.24 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).
As a certified reference material (CRM), 3-Ethoxybenzo[d]isothiazole 1,1-dioxide meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C9H9NO3S |
| Molecular Weight | 211.24 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Ethoxybenzo Standards
- 7-Ethoxybenzo[d]thiazole-2(3H)-thione (CAS 767583-07-3)
- 4-Ethoxybenzo[d]oxazole-2-carboxylic acid (CAS 1804087-40-8)
- 6-Ethoxybenzo[d]oxazole-2-carboxylic acid (CAS 1806494-06-3)
- 1-(5-Ethoxybenzo[d]oxazol-2-yl)ethanone (CAS 1803815-16-8)
- 1-(6-Ethoxybenzo[d]oxazol-2-yl)ethanone (CAS 1806283-48-6)
- 1-(2-Ethoxybenzo[d]oxazol-4-yl)ethanone (CAS 1806300-01-5)
- 1-(7-Ethoxybenzo[d]oxazol-2-yl)ethanone (CAS 1806429-79-7)
- 1-(4-Ethoxybenzo[d]oxazol-2-yl)ethanone (CAS 1807098-09-4)
Recommended Standards
- Methyl 3-[1,3]thiazolo[2,3-c][1,2,4]triazol-5-ylpropanoate (CAS 1858251-07-6)
- 2-[(carbamoylmethyl)sulfanyl]benzoic acid (CAS 197236-53-6)
- 3-(4-Nitropyridin-3-yl)thiazolidine 1774896-19-3 (CAS 1774896-19-3)
- (2Z)-3-Ethyl-2-[(4H-1,2,4-triazol-4-yl)imino]-1,3-thiazolidin-4-one (CAS 5102-46-5)
- (2R,3R,4S,5R)-2-(6-Amino-9H-purin-9-yl)-5-(methoxymethyl)tetrahydrofuran-3,4-diol (CAS 139468-46-5)
- 6-(bromodifluoromethyl)pyridine-3-carboxylic acid (CAS 1989659-84-8)
- N-(4-(3,3,3-trifluoropropoxy)benzyl)ethanamine (CAS 1465524-59-7)
- 3-Methyl-1,2-dihydropyrimido[5,4-e][1,2,4]triazine (CAS 19801-82-2)
- (S)-2-(Isochroman-1-yl)ethanol (CAS 177742-21-1)
- 4-Ethyl-2-(1-phenyl-1H-pyrazol-5-yl)phenol (CAS 1202028-81-6)
- 4-Cyano-3-fluorophenyl 4-(trans-4-propylcyclohexyl)benzoate (CAS 92118-82-6)
- 3-Hydroxy-3-(quinolin-6-yl)propanoic acid (CAS 1343016-11-4)
- 1-(Piperazin-1-yl)-2-(pyridin-4-yl)ethan-1-one (CAS 849355-57-3)
- Peptide Impurity 13 (CAS CATO-CPTD788813)
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