4-Cyclopentene-1,3-dione CAS 39151-19-4
Purity >95%In StockPharmaceutical Standards
| CAS No. | 39151-19-4 |
| Molecular Formula | C5H4O2 |
| Molecular Weight | 96.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Cyclopentene-1,3-dione (CAS 39151-19-4) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C5H4O2. Molecular weight: 96.08 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C5H4O2 |
| Molecular Weight | 96.08 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1968 |
Related Cyclopentene Standards
- 1-Cyclopentene-1-carbaldehyde (CAS 6140-65-4)
- 1-Ethyl-1-cyclopentene (CAS 2146-38-5)
- cyclopentene-1-carbonitrile (CAS 3047-38-9)
- 3-Methyl-1-cyclopentene (CAS 1120-62-3)
- Cyclopentene-d8 (CAS 6611-46-7)
- Cyclopentene (CAS 142-29-0)
- 2-Cyclopentene-1-acetic acid (CAS 13668-61-6)
- 1-Cyclopentene-1-carboxylic Acid Methyl Ester (CAS 25662-28-6)
Recommended Standards
- Cyclopent-4-ene-1,3-dione (CAS 930-60-9)
- 5-Methylene-2(5H)-furanone (CAS 108-28-1)
- 3-Furaldehyde (CAS 498-60-2)
- 1-Hydroxypropane-1,3-disulfonic acid (CAS 35850-94-3)
- (1-Amino-4-methylpentan-2-yl)(1-phenylethyl)amine (CAS 1311314-37-0)
- 4-(4-Chlorophenyl)-1-(4-fluorophenyl)-1h-imidazole-2-thiol (CAS 440119-35-7)
- 3-Iodo-7-methoxy-2H-indazole (CAS 1429222-40-1)
- 1,5-naphthyridine-4-carbaldehyde (CAS 64379-44-8)
- 5-(4-Fluoro-3-methoxyphenyl)pyrimidin-2-ol (CAS 1261934-62-6)
- Semaglutide impurity 201 (CAS CATO-C4X-2226201)
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