| CAS No. | 636-41-9 |
| Molecular Formula | C5H7N |
| Molecular Weight | 81.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
2-Methylpyrrole (CAS 636-41-9), molecular formula C5H7N and molecular weight 81.12 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrile group, 2-Methylpyrrole is typically white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 81.12 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
| Molecular Formula | C5H7N |
| Molecular Weight | 81.12 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.) | 1957 |
| Nitrogen Atoms | 1 |