1-Methyl-4-nitro-1,3-dihydrobenzo[c]isothiazole 2,2-dioxide CAS 94514-77-9
| CAS No. | 94514-77-9 |
| Molecular Formula | C8H8N2O4S |
| Molecular Weight | 228.23 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.
1-Methyl-4-nitro-1,3-dihydrobenzo[c]isothiazole 2,2-dioxide (CAS 94514-77-9), molecular formula C8H8N2O4S and molecular weight 228.23 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 1-Methyl-4-nitro-1,3-dihydrobenzo[c]isothiazole 2,2-dioxide (C8H8N2O4S) 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 228.23 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO manufactures 1-Methyl-4-nitro-1,3-dihydrobenzo[c]isothiazole 2,2-dioxide 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 | C8H8N2O4S |
| Molecular Weight | 228.23 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.) | 1984 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Methyl Standards
- 1-Methyl-7-nitro-1,3-dihydrobenzo[c]isothiazole 2,2-dioxide (CAS 189013-84-1)
- 1-Methyl-5-nitro-1,3-dihydrobenzo[c]isothiazole 2,2-dioxide (CAS 30725-77-0)
- 1-Methyl-6-nitro-1,3-dihydrobenzo[c]isothiazole 2,2-dioxide (CAS 94514-73-5)
- 3-[(3-Nitro-1h-pyrazol-1-yl)methyl]benzonitrile (CAS 1006569-15-8)
- 3-Methyl-2-nitro-3H-imidazo[4,5-F]quinoline (CAS 114451-08-0)
- Ethyl 2-(3-nitro-1H-1,2,4-triazol-1-yl)butanoate (CAS 1341199-88-9)
- 2-Nitro-6-methyldipyrido[1,2-a:3,2-d]imidazole (CAS 83692-82-4)
- 3-[(4-Nitro-1h-pyrazol-1-yl)methyl]benzonitrile (CAS 957501-01-8)
Recommended Standards
- 1-((4-Nitrophenyl)sulfonyl)aziridine (CAS 43090-97-7)
- 2-(2-Fluorophenyl)-[1,2,4]triazolo[1,5-a]pyridin-7-amine (CAS 1893727-25-7)
- 2-(4-Fluorophenyl)-[1,2,4]triazolo[1,5-a]pyridin-7-amine (CAS 1892748-29-6)
- 2-(4-Fluorophenyl)-2H-benzo[d][1,2,3]triazol-5-amine (CAS 293737-98-1)
- N-Boc-3,4-Dihydro-2(1H)-Quinolinone (CAS 194979-77-6)
- 2-(2-(3-Bromobenzoyl)hydrazine-1-carbonyl)benzoic acid (CAS 303770-37-8)
- 4-Formyl-5-hydroxy-6-methylnicotinic acid (CAS 61547-30-6)
- 2-Chloro-5-(2-thienyl)pyrazine (CAS 912762-30-2)
- 2'-Benzyloxy-biphenyl-2-ylamine (CAS 142505-66-6)
- 2-Heptyl-4-hydroxyquinolin-1-ium-1-olate (CAS 341-88-8)
- 3-(2-Bromo-ethyl)-benzo[d]isoxazole (CAS 57148-67-1)
- 5,5'-((4-Nitrophenyl)methylene)bis(2-methylfuran) (CAS 86698-38-6)
- (8-Methoxynaphthalen-1-yl)boronic acid (CAS 190188-68-2)
- Semaglutide impurity 197 (CAS CATO-C4X-2226197)
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