7-Hydroxy-2,3-dihydrobenzo[b][1,4]dioxine-6-carboxylic acid CAS 197584-99-9
| CAS No. | 197584-99-9 |
| Molecular Formula | C9H8O5 |
| Molecular Weight | 196.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 7-Hydroxy-2,3-dihydrobenzo[b][1,4]dioxine-6-carboxylic acid (CAS 197584-99-9), a certified reference material (molecular formula C9H8O5, MW 196.16 g/mol) for analytical method development and quality control.
Based on its molecular formula C9H8O5, 7-Hydroxy-2,3-dihydrobenzo[b][1,4]dioxine-6-carboxylic acid contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 196.16 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C9H8O5 |
| Molecular Weight | 196.16 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| 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.) | 2013 |
Related Hydroxy Standards
- N-hydroxy-5-(N-hydroxycarbamimidoyl)picolinamide (CAS 1135282-99-3)
- 7-Hydroxy-1,3-benzodioxole-5-carboxylic Acid Methyl Ester (CAS 116119-01-8)
- 2-(2-Hydroxy-4-methoxyphenyl)-2-oxoacetic acid (CAS 120240-70-2)
- 7-Hydroxy-2,3-dihydrobenzo[b][1,4]dioxine-2-carboxylic acid (CAS 160657-99-8)
- 6-Hydroxy-2,3-dihydrobenzo[b][1,4]dioxine-2-carboxylic acid (CAS 160658-00-4)
- 3-Hydroxy-5-(methoxycarbonyl)benzoic Acid (CAS 167630-15-1)
- [(5-Hydroxy-pyridine-3-carbonyl)-amino]-acetic acid (CAS 325970-25-0)
- 2-Hydroxy-4-(methoxycarbonyl)benzoic acid (CAS 29602-00-4)
Recommended Standards
- 1-(2-Oxotetrahydrofuran-3-yl)pyrimidine-2,4(1H,3H)-dione (CAS 19674-77-2)
- (2E)-3-[4-(methoxycarbonyl)furan-2-yl]prop-2-enoic acid (CAS 2060522-85-0)
- Methyl 2-nitro-2-(pyridin-2-yl)acetate (CAS 1956363-85-1)
- (2R,3R,4S,5R)-2,3,4,5,6-pentahydroxyhexanoic acid (CAS 20246-53-1)
- [(2-Bromo-4-methyl-phenyl)-difluoro-methyl]-phosphonic acid diethyl ester (CAS 863977-42-8)
- 2-Isopropyl-4-methyl-1H-indole (CAS 42958-23-6)
- Ethyl 2-(1H-pyrrolo[2,3-b]pyridin-1-yl)acetate (CAS 1048913-05-8)
- Tert-butyl ((1-fluoro-3-oxocyclobutyl)methyl)carbamate (CAS 2231675-68-4)
- (4-Benzyl-2,2-dimethyl-tetrahydro-pyran-4-yl)-acetic acid (CAS 109878-51-5)
- 1-mercapto-4-methyl[1,2,4]triazolo[4,3-a]quinazolin-5(4H)-one (CAS 127570-96-1)
- 5181-75-9 AR-1J6137 methyl prop-2-en-1-yl 4-(2-fluorophenyl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate (CAS 5181-75-9)
- Ivabradine Impurity 35 (CAS CATO-C4X-111935)
- 4-aminoquinazoline-7-carboxamide (CAS 1258650-92-8)
- Tirzepatide Impurity 58 (CAS CATO-C4X-324058)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com