3-Oxocyclobutanecarbonitrile CAS 20249-16-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 20249-16-5 |
| Molecular Formula | C5H5NO |
| Molecular Weight | 95.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Oxocyclobutanecarbonitrile (CAS 20249-16-5) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C5H5NO. Molecular weight: 95.10 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C5H5NO |
| Molecular Weight | 95.10 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1962 |
| Nitrogen Atoms | 1 |
Recommended Standards
- 3-methyl-1,2,4-triazine (CAS 24108-33-6)
- 4,5-Dihydro-1H-pyrazole-5-carbonitrile (CAS 63438-31-3)
- 3-Ethenyl-4H-1,2,4-triazole (CAS 61230-89-5)
- 4-Methoxy-N-(6-methyl-4-oxothiochroman-3-yl)benzenesulfonamide (CAS 866144-21-0)
- Tert-butyl (R)-(1-hydroxy-3-(4-hydroxyphenyl)propan-2-yl)carbamate (CAS 247018-46-8)
- 2-[(1-ethyl-1H-pyrazol-5-yl)sulfanyl]acetic acid (CAS 1170889-48-1)
- Methyl (2Z)-2-(4-chlorobenzenesulfonyl)-3-[(3,4-dimethoxyphenyl)amino]prop-2-enoate (CAS 1327196-19-9)
- Abemaciclib Impurity 82 (CAS CATO-C4X-293782)
- 1-(BENZO[D]THIAZOL-2-YL)CYCLOPROPANAMINE (CAS 1266219-00-4)
- Neuropeptide EI (human, mouse, rat) (CAS 125934-45-4)
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