2-Chloro-1H-pyrrole CAS 56454-22-9
| CAS No. | 56454-22-9 |
| Molecular Formula | C4H4ClN |
| Molecular Weight | 101.53 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 101.53 g/mol gives 2-Chloro-1H-pyrrole distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2-Chloro-1H-pyrrole (CAS 56454-22-9) is a high-purity analytical reference standard with the molecular formula C4H4ClN and a molecular weight of 101.53 g/mol.
The molecular framework of 2-Chloro-1H-pyrrole (C4H4ClN) is characterized by a nitrile group, chlorine substitution. 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.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), 2-Chloro-1H-pyrrole meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C4H4ClN |
| Molecular Weight | 101.53 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1973 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Chloro Standards
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- 4-(2-Chloro-pyridin-4-ylmethyl)-1-isopropyl-azepane (CAS 1316227-42-5)
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