3-(Methylsulfonyl)-1H-pyrrole CAS 82511-59-9
| CAS No. | 82511-59-9 |
| Molecular Formula | C5H7NO2S |
| Molecular Weight | 145.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
3-(Methylsulfonyl)-1H-pyrrole (CAS 82511-59-9), molecular formula C5H7NO2S and molecular weight 145.18 g/mol, is a CATO reference standard with documented purity and traceability.
3-(Methylsulfonyl)-1H-pyrrole (C5H7NO2S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
As a certified reference material (CRM), 3-(Methylsulfonyl)-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 | C5H7NO2S |
| Molecular Weight | 145.18 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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.) | 1980 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Methylsulfonyl Standards
- 4-(Methylsulfonyl)-1H-pyrazole (CAS 1559062-17-7)
- 1-(Methylsulfonyl)-1H-pyrazole (CAS 262859-70-1)
- 2-(Methylsulfonyl)imidazole (CAS 27098-98-2)
- 3-(Methylsulfonyl)-1H-pyrazole (CAS 49651-55-0)
- 3-methyl-3-methylsulfonyl-but-1-yne (CAS 2109226-54-0)
- 5-methylsulfonyl-1H-1,2,4-triazole (CAS 3589-05-7)
- 2-Methyl-2-(methylsulfonyl)propanenitrile (CAS 14668-29-2)
- 1-(Methylsulfonyl)-3-pyrroline (CAS 246540-50-1)
Recommended Standards
- 2-Methanesulfonyl-1H-pyrrole (CAS 82511-61-3)
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- 3-Ethyl-1,3-thiazolidine-2,4-dione (CAS 37868-77-2)
- O-(4-Phenoxybutyl)hydroxylamine (CAS 54149-55-2)
- (R)-1-(3-fluoro-4-methoxyphenyl)-2-methoxyethan-1-amine (CAS 1270081-95-2)
- Methyl 4-mercaptobutanoate (CAS 39257-91-5)
- Chlormezanone (CAS 80-77-3)
- 1-(3-Methylisoxazol-4-yl)butan-1-one (CAS 207913-24-4)
- 2-Bromo-N-(1,1-dioxidotetrahydrothiophen-3-yl)benzamide (CAS 303016-10-6)
- 2-((Tert-butyldiphenylsilyl)oxy)ethan-1-ol (CAS 138499-16-8)
- 2-((3-(2-Chlorophenyl)-1,2,4-thiadiazol-5-yl)thio)-N-(5-methylisoxazol-3-yl)acetamide (CAS 864919-59-5)
- (R)-5-(4-fluorophenyl)pyrrolidin-2-one (CAS 890853-47-1)
- Tirzepatide(sodium salt) (CAS 2023788-19-2(free base))
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