6-Hydroxybenzofuran-2-carboxylic Acid CAS 334022-87-6
| CAS No. | 334022-87-6 |
| Molecular Formula | C9H6O4 |
| Molecular Weight | 178.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 6-Hydroxybenzofuran-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).
CATO supplies 6-Hydroxybenzofuran-2-carboxylic Acid (CAS 334022-87-6), a certified reference material (molecular formula C9H6O4, MW 178.14 g/mol) for analytical method development and quality control.
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.
CATO manufactures 6-Hydroxybenzofuran-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 | 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.) | 2025 |
Related Hydroxybenzofuran Standards
- 4-Hydroxybenzofuran-2-carboxylic acid (CAS 113511-42-5)
- 6-Hydroxybenzofuran-3-carboxylic acid (CAS 115693-71-5)
- 5-Hydroxybenzofuran-2-carboxylic Acid (CAS 56172-36-2)
- 7-Hydroxybenzofuran-2-carboxylic acid (CAS 4790-80-1)
- 1-(5-Hydroxybenzofuran-3-yl)ethan-1-one (CAS 17249-68-2)
- 1-(3-Hydroxybenzofuran-2-yl)ethanone (CAS 5556-33-2)
- 1-(4-Hydroxybenzofuran-2-yl)ethanone (CAS 23295-57-0)
- 1-(4-Hydroxybenzofuran-5-yl)ethanone (CAS 69722-46-9)
Recommended Standards
- 6-Hydroxy-1H-indazole-5-carboxylic acid (CAS 574758-53-5)
- 6-Methoxybenzofuran-2,3-dione (CAS 49753-64-2)
- 6-Hydroxy-1H-indazole-3-carboxylic acid (CAS 885520-18-3)
- 6-Nitro-1H-indol-4-ol (CAS 885520-71-8)
- (4-(Oxetan-3-yl)-3-(trifluoromethyl)phenyl)boronic acid (CAS 2256708-84-4)
- 2,6-Dithiophen-2-yl-dithieno[3,2-b;2’,3’-d]thiophene (CAS 910788-24-8)
- 3-Amino-5-hydroxybenzoic Acid Hydrochloride (CAS 14206-69-0)
- N-(3,4-dimethoxyphenethyl)quinoline-8-sulfonamide (CAS 321720-14-3)
- 1-((2-Nitrophenyl)sulfonyl)-1,4-diazepane hydrochloride (CAS 1187929-45-8)
- 2-Butenedioic acid (2E)-, polymer with 1,3-isobenzofurandione and oxybis[propanol] (CAS 67953-51-9)
- 2-chloro-5-fluoro-7H-pyrrolo[2,3-d]pyrimidine (CAS 1638768-28-1)
- 3-Benzenesulfonamido-3-[4-(propan-2-yl)phenyl]propanoic acid (CAS 861207-56-9)
- (S)-5-Benzyl-2,2,3-trimethylimidazolidin-4-one (CAS 132278-63-8)
- Semaglutide impurity 51 (CAS CATO-C4X-222651)
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