4786-20-3 Crotononitrile 2-Butenenitrile AI3-28717 Crotonic nitrile Crotonique nitrile [French] Crotonitrile Crotonnitrile 1-Cyanopropene EINECS 225-335-1 beta-Methylacrylonitrile NSC 165574 1-Propenyl cyanide Crotonique nitrile CAS 4786-20-3
| CAS No. | 4786-20-3 |
| Molecular Formula | C4H5N |
| Molecular Weight | 67.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4786-20-3 Crotononitrile 2-Butenenitrile AI3-28717 Crotonic nitrile Crotonique nitrile [French] Crotonitrile Crotonnitrile 1-Cyanopropene EINECS 225-335-1 beta-Methylacrylonitrile NSC 165574 1-Propenyl cyanide Crotonique nitrile (CAS 4786-20-3), molecular formula C4H5N and molecular weight 67.09 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 4786-20-3 Crotononitrile 2-Butenenitrile AI3-28717 Crotonic nitrile Crotonique nitrile [French] Crotonitrile Crotonnitrile 1-Cyanopropene EINECS 225-335-1 beta-Methylacrylonitrile NSC 165574 1-Propenyl cyanide Crotonique nitrile (C4H5N) is characterized by a nitrile group. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C4H5N |
| Molecular Weight | 67.09 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 1 |
Related Crotononitrile Standards
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- 5-(naphthalen-2-yl)-1,2,4-triazin-3-amine (CAS 1152506-17-6)
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