1H-Pyrrole-2-sulfonamide CAS 55673-67-1
| CAS No. | 55673-67-1 |
| Molecular Formula | C4H6N2O2S |
| Molecular Weight | 146.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 1H-Pyrrole-2-sulfonamide 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.
1H-Pyrrole-2-sulfonamide (CAS 55673-67-1) is a high-purity analytical reference standard with the molecular formula C4H6N2O2S and a molecular weight of 146.17 g/mol.
The molecular framework of 1H-Pyrrole-2-sulfonamide (C4H6N2O2S) is characterized by an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. 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. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
Physical & Chemical Properties
| Molecular Formula | C4H6N2O2S |
| Molecular Weight | 146.17 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1972 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related H Standards
- 1H-Pyrrole-3-sulfonamide (CAS 189063-21-6)
- 1H-Pyrrole-3-sulfonic acid (CAS 749255-18-3)
- 1H-Pyrrole-2-sulfonyl fluoride (CAS 1909325-87-6)
- 1H-pyrrole-2-carboxylic acid, ethyl ester 2199-43-1 InChI=1/C7H9NO2/c1-2-10-7(9)6-4-3-5-8-6/h3-5,8H,2H2,1H ethyl 1H-pyrrole-2-carboxylate (CAS 2199-43-1)
- pyrrole-1-sulfonamide (CAS 1237884-46-6)
- 1H-Pyrrole-2,3,5-tricarbaldehyde (CAS 81697-99-6)
- 1,1'-(1H-Pyrrole-1,2-diyl)diethanone (CAS 365221-43-8)
- 1,1'-(1H-Pyrrole-2,3-diyl)diethanone (CAS 87032-88-0)
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