4-Oxo-4H-[1,3]thiazino[3,2-a]benzimidazole-2-carboxylic acid CAS 69469-81-4
| CAS No. | 69469-81-4 |
| Molecular Formula | C11H6N2O3S |
| Molecular Weight | 246.24 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.
4-Oxo-4H-[1,3]thiazino[3,2-a]benzimidazole-2-carboxylic acid (CAS 69469-81-4), molecular formula C11H6N2O3S and molecular weight 246.24 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C11H6N2O3S, 4-Oxo-4H-[1,3]thiazino[3,2-a]benzimidazole-2-carboxylic acid contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 246.24 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 4-Oxo-4H-[1,3]thiazino[3,2-a]benzimidazole-2-carboxylic acid 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 | C11H6N2O3S |
| Molecular Weight | 246.24 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Recommended Standards
- 4-Methylphenyl 4-fluoropyridin-2-ylcarbamate (CAS 1993309-93-5)
- 4-Oxo-4H-9-thia-1,4a-diaza-fluorene-3-carboxylic acid (CAS 21786-97-0)
- 4-Hydroxy-N,N-dimethyl-3-nitrobenzenesulfonamide (CAS 42247-91-6)
- 4-Oxo-4H-pyrido[1,2-a]thieno[2,3-d]pyrimidine-2-carboxylic acid (CAS 380348-51-6)
- Selenophen-3-ylboronic acid (CAS 35133-85-8)
- 2-(difluoromethoxy)naphthalene-1-carbaldehyde (CAS 80395-32-0)
- (4-Chloro-3-fluorobenzyl)(4-chloro-3-fluorophenyl)sulfane (CAS 1443345-21-8)
- Methyl 4-[(4-methylphenyl)(methylsulfonyl)amino]butanoate (CAS 1858242-69-9)
- Promethazine Impurity 23 (CAS 64505-48-2)
- 4-Chloroquinoline-6-carbaldehyde (CAS 676256-25-0)
- 5-Bromochroman-4-one (CAS 1199782-67-6)
- Pyronaridine Impurity 2 (CAS 1422180-92-4)
- 2-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)-N-isopropylacetamide (CAS 1060945-51-8)
- Semaglutide impurity 69 (CAS CATO-C4X-222669)
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