Benzo[b][1,4]dioxine-2-carboxylic acid CAS 67471-01-6
| CAS No. | 67471-01-6 |
| Molecular Formula | C9H6O4 |
| Molecular Weight | 178.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Benzo[b][1,4]dioxine-2-carboxylic acid.
Benzo[b][1,4]dioxine-2-carboxylic acid (CAS 67471-01-6) is a high-purity analytical reference standard with the molecular formula C9H6O4 and a molecular weight of 178.14 g/mol.
Structurally, Benzo[b][1,4]dioxine-2-carboxylic acid (C9H6O4) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. 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 178.14 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), Benzo[b][1,4]dioxine-2-carboxylic acid 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 | C9H6O4 |
| Molecular Weight | 178.14 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
Related Benzo Standards
- Methyl benzo[c][1,2,5]oxadiazole-5-carboxylate (CAS 126147-87-3)
- Benzo[d][1,3]dioxole-4,7-dicarbaldehyde (CAS 179693-87-9)
- Benzo[c][1,2,5]oxadiazole-5-carbohydrazide (CAS 175203-93-7)
- 1-(4H-Benzo[d][1,3]dioxin-6-yl)ethanone (CAS 57268-11-8)
- 1-(Benzo[d][1,3]dioxol-5-yl)cyclopropan-1-ol (CAS 68756-58-1)
- 1-(Benzo[d][1,3]dioxol-5-yl)prop-2-en-1-ol (CAS 5208-87-7)
- 3-(Benzo[d][1,3]dioxol-5-yl)propanal (CAS 30830-55-8)
- 2-(Benzo[d]oxazol-2-ylamino)ethan-1-ol (CAS 134704-32-8)
Recommended Standards
- 8-Hydroxy-1H-quinazoline-2,4-dione (CAS 40919-26-4)
- Dimethyl 2,5-Dioxahexanedioate (CAS 88754-66-9)
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- Dimethyl D-Tartrate (CAS 5057-96-5)
- N-(2,5-Difluorophenyl)-2-[4-(5-methyl-1,2,4-oxadiazol-3-yl)-1,3-dioxo-1H,2H,3H,5H,6H,7H,8H-pyrido[1,2-c]pyrimidin-2-yl]acetamide (CAS 1775524-16-7)
- 5-(Pyrrolidin-2-yl)-1H-1,2,4-triazole (CAS 933725-02-1)
- 3-Cyclopropoxy-5-methoxybenzenesulfonamide (CAS 1243406-84-9)
- 2,5-Dimethyl-1-(4-{[1,2,4]triazolo[1,5-a]pyrimidin-7-yl}phenyl)-1H-pyrrole (CAS 865658-62-4)
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