4-Oxo-4,5,6,7-tetrahydrobenzofuran-2-carboxylic acid CAS 108249-48-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 108249-48-5 |
| Molecular Formula | C9H8O4 |
| Molecular Weight | 180.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Oxo-4,5,6,7-tetrahydrobenzofuran-2-carboxylic acid (CAS 108249-48-5) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C9H8O4. Molecular weight: 180.16 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C9H8O4 |
| Molecular Weight | 180.16 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.) | 1987 |
Related Oxo Standards
- 3-Methyl-4,5,6,7-tetrahydrobenzofuran-2-carboxylic acid (CAS 1135214-53-7)
- 2-Methyl-4,5,6,7-tetrahydrobenzofuran-3-carboxylic acid (CAS 65384-02-3)
- Methyl 4,5,6,7-tetrahydrobenzofuran-6-carboxylate (CAS 73568-02-2)
- 4,5,6,7-Tetrahydrobenzofuran-2-carboxylic acid (CAS 1369138-08-8)
- 4,5,6,7-Tetrahydrobenzofuran-6-carboxylic acid (CAS 1481114-96-8)
- Ethyl 4,5,6,7-tetrahydrobenzofuran-3-carboxylate (CAS 128780-09-6)
- Ethyl 4,5,6,7-tetrahydrobenzofuran-6-carboxylate (CAS 1935164-09-2)
- 2-Ethyl-4,5,6,7-tetrahydrobenzofuran-3-amine (CAS 2567560-38-5)
Recommended Standards
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- 3-Amino-6-bromobenzofuran-2-carboxylic acid (CAS 887246-19-7)
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- 4-Bromo-2-[(2Z)-2-(4-chlorophenyl)-2-(methoxyimino)ethyl]-5-(morpholin-4-yl)-2,3-dihydropyridazin-3-one (CAS 477855-44-0)
- (9-D-Asp) Semaglutide X Sodium salt (CAS CATO-CPTD788617)
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