5,5-Dimethyl-4-oxo-4,5-dihydrofuran-2-carboxylic acid CAS 72420-41-8
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 72420-41-8 |
| Molecular Formula | C7H8O4 |
| Molecular Weight | 156.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5,5-Dimethyl-4-oxo-4,5-dihydrofuran-2-carboxylic acid (CAS 72420-41-8) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C7H8O4. Molecular weight: 156.14 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C7H8O4 |
| Molecular Weight | 156.14 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
Related Dimethyl Standards
- 3,3-Dimethyl-5-oxo-3H-1,2,4-triazole-4(5H)-carboxamide (CAS 119493-09-3)
- 1,3-Dimethyl-2-oxo-2,3-dihydro-1H-imidazole-4-carboxylic acid (CAS 17245-63-5)
- 1,5-Dimethyl-2-oxo-2,3-dihydro-1H-imidazole-4-carboxylic acid (CAS 1895681-18-1)
- 1,2-Dimethyl-4-nitro-1H-imidazol-5-amine (CAS 21677-57-6)
- 1,2-Dimethyl-5-nitro-1h-imidazol-4-amine (CAS 21677-56-5)
- 1,3-Dimethyl-4-nitro-1h-pyrazol-5-amine (CAS 76689-64-0)
- 1,3-Dimethyl-5-hydroxyuracil (CAS 408335-42-2)
- 3,5-Dimethyl-4-nitro-1H-pyrazol-1-amine (CAS 301326-14-7)
Recommended Standards
- 5-(Methoxymethyl)-1h-pyrazole-3-carboxylic acid (CAS 840504-40-7)
- 5,6-Diamino-3-methylpyrimidine-2,4(1H,3H)-dione (CAS 40959-24-8)
- 5-(hydroxymethyl)-N-methyl-3-Isoxazolecarboxamide (CAS 210641-15-9)
- 1-(2-Amino-5-fluorophenyl)-3-ethylurea (CAS 1338955-42-2)
- 5-Methyl-1H-pyrrolo[3,2-b]pyridin-3-amine (CAS 1190310-46-3)
- 1-(Allyloxy)-2-(trifluoromethyl)benzene (CAS 1300746-88-6)
- 5-(4-Chloro-3-nitrophenyl)-3-(2,5-dimethylphenyl)-1,2,4-oxadiazole (CAS 1707371-51-4)
- Methyl 2-(Cyanomethyl)benzoate (CAS 5597-04-6)
- 3-(Pyridin-4-yl)-1-(3-(trifluoromethyl)phenyl)-1H-pyrazole-4-carboxylic acid (CAS 400076-49-5)
- Semaglutide impurity 88 (CAS CATO-C4X-222688)
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 13829788188 / jacky.chen@cato-chem.com