Methyl benzo[d]isothiazole-7-carboxylate CAS 2029305-12-0
| CAS No. | 2029305-12-0 |
| Molecular Formula | C9H7NO2S |
| Molecular Weight | 193.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Methyl benzo[d]isothiazole-7-carboxylate 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.
Methyl benzo[d]isothiazole-7-carboxylate (CAS 2029305-12-0), molecular formula C9H7NO2S and molecular weight 193.22 g/mol, is a CATO reference standard with documented purity and traceability.
Methyl benzo[d]isothiazole-7-carboxylate (C9H7NO2S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 | C9H7NO2S |
| Molecular Weight | 193.22 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Methyl Standards
- Methyl benzo[d]thiazole-7-carboxylate (CAS 1038509-28-2)
- Methyl benzo[c]isothiazole-6-carboxylate (CAS 108763-54-8)
- Methyl benzo[d]isothiazole-5-carboxylate (CAS 1197944-18-5)
- 2-(Benzo[d]oxazol-2-ylthio)acetaldehyde (CAS 1248044-95-2)
- Methyl benzo[c]isothiazole-5-carboxylate (CAS 1352442-90-0)
- Methyl benzo[d]isothiazole-4-carboxylate (CAS 1378676-29-9)
- Methyl benzo[d]isothiazole-6-carboxylate (CAS 1823835-78-4)
- 2-(Benzo[c]isothiazol-3-yl)acetic acid (CAS 57676-16-1)
Recommended Standards
- Methyl benzo[c]isothiazole-4-carboxylate (CAS 56910-98-6)
- Methyl benzo[d]thiazole-2-carboxylate (CAS 87802-07-1)
- Methyl 3-(methylamino)thietane-3-carboxylate 1,1-dioxide (CAS 2286883-86-9)
- Methyl benzo[d]thiazole-4-carboxylate (CAS 2107543-87-1)
- 7-iodo-[1,2,4]triazolo[1,5-a]pyridine (CAS 690258-25-4)
- Cyclohexyl(4-(hydroxyimino)piperidin-1-yl)methanone (CAS 1016888-04-2)
- (Z)-3-Amino-3-phenyl-acrylic acid ethyl ester (CAS 53256-19-2)
- 3-(4-Bromobenzenesulfonyl)-1-(3-nitrophenyl)propan-1-one (CAS 868256-17-1)
- 1,3-Diethyl 2-{[3-(4-ethylphenoxy)phenyl]methylidene}propanedioate (CAS 866154-79-2)
- Abemaciclib Impurity 157 (CAS CATO-C4X-2937157)
- Methyl 4-chloro-2-hydroxybenzoate (CAS 22717-55-1)
- 1-[4-(chloromethyl)phenyl]-3,5-dimethyl-1H-pyrazole hydrochloride (CAS 1171078-98-0)
- 4-((Benzyloxy)methyl)-3-(thiophen-2-yl)-1,4,5,7-tetrahydro-6H-pyrazolo[3,4-b]pyridin-6-one (CAS 1269356-10-6)
- Semaglutide impurity 261 (CAS CATO-C4X-2226261)
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