Methyl 3-(1,1-dioxido-3-oxobenzo[d]isothiazol-2(3h)-yl)propanoate CAS 22010-99-7
| CAS No. | 22010-99-7 |
| Molecular Formula | C11H11NO5S |
| Molecular Weight | 269.27 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.
Methyl 3-(1,1-dioxido-3-oxobenzo[d]isothiazol-2(3h)-yl)propanoate (CAS 22010-99-7), molecular formula C11H11NO5S and molecular weight 269.27 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Methyl 3-(1,1-dioxido-3-oxobenzo[d]isothiazol-2(3h)-yl)propanoate (C11H11NO5S) 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 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 269.27 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), Methyl 3-(1,1-dioxido-3-oxobenzo[d]isothiazol-2(3h)-yl)propanoate 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 | C11H11NO5S |
| Molecular Weight | 269.27 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.) | 1963 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Methyl Standards
- 4-(1,1-dioxido-3-oxobenzo[d]isothiazol-2(3H)-yl)butanoic acid (CAS 10312-42-2)
- 3-(1,1-Dioxido-1,2-thiazinan-2-yl)-4-methylbenzoic acid (CAS 927996-01-8)
- 3-(6-Methyl-1,1-dioxido-4h-1,2,4-benzothiadiazin-3-yl)propanoic acid (CAS 101063-96-1)
- 4-[(1,1-dioxido-1,2-benzisothiazol-3-yl)amino]butanoic acid (CAS 71054-78-9)
- Ethyl 2-(1,1-dioxido-2H-benzo[e][1,2,4]thiadiazin-3-yl)acetate (CAS 53971-22-5)
- 4-(1,1-Dioxido-3-oxo-1,2-benzisothiazol-2(3H)-yl)but-2-enoic acid (CAS 10295-14-4)
- 7,7-Dioxido-5,6-dihydro-4H-thieno[2,3-b]thiopyran-4-yl cyclopropanecarboxylate (CAS 339019-01-1)
- N-(1,1-Dioxido-2,3-dihydrothiophen-3-yl)-N-(o-tolyl)acetamide (CAS 838891-20-6)
Recommended Standards
- Methyl 2-methyl-4-oxo-3,4-dihydro-2H-benzo[e][1,2]thiazine-3-carboxylate (CAS 29209-30-1)
- N-((1H-benzo[d]imidazol-2-yl)methyl)-4-fluorobenzamide (CAS 338410-70-1)
- Methyl 1-(4-fluorophenyl)-1H-indole-4-carboxylate (CAS 206767-65-9)
- n-(2-(Difluoromethoxy)phenyl)thiophene-2-carboxamide (CAS 674362-88-0)
- (6-Chlorobenzo[b]thiophen-2-yl)methanol (CAS 234107-53-0)
- (2S)-2-Amino-N1-(1-((S)-1-((S)-2-amino-3-(4-hydroxyphenyl)propanoyl)pyrrolidin-2-yl)-1,3-dioxobutan-2-yl)succinamide (CAS 82867-72-9)
- tert-Butyl 6-chloro-1H-indazole-1-carboxylate (CAS 1260888-96-7)
- {[4-(Benzyloxy)-3-methoxyphenyl]methyl}(butan-2-yl)amine hydrochloride (CAS 1158390-87-4)
- Ethyl 2-(6-bromo-8-methylimidazo[1,2-a]pyridin-2-yl)acetate (CAS 1239741-70-8)
- rel-tert-Butyl (3R,4R)-4-cyano-3-hydroxypiperidine-1-carboxylate (CAS 188879-53-0)
- 1-(6-Amino-2-azaspiro[3.3]Heptan-2-yl)ethan-1-one (CAS 2227205-44-7)
- N-(4-(4-Ethoxyphenyl)thiazol-2-yl)propionamide (CAS 433703-31-2)
- 2-Bromo-1-(7-chloro-2,3-dihydrobenzo[b][1,4]dioxin-6-yl)ethan-1-one (CAS 939744-43-1)
- Tirzepatide Impurity 49 (CAS CATO-C4X-324049)
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