1-(Methylsulfonyl)-1H-pyrrole-3-carboxylic acid CAS 1521806-48-3
| CAS No. | 1521806-48-3 |
| Molecular Formula | C6H7NO4S |
| Molecular Weight | 189.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 189.19 g/mol gives 1-(Methylsulfonyl)-1H-pyrrole-3-carboxylic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
1-(Methylsulfonyl)-1H-pyrrole-3-carboxylic acid (CAS 1521806-48-3) is a high-purity analytical reference standard with the molecular formula C6H7NO4S and a molecular weight of 189.19 g/mol.
Based on its molecular formula C6H7NO4S, 1-(Methylsulfonyl)-1H-pyrrole-3-carboxylic acid contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 189.19 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C6H7NO4S |
| Molecular Weight | 189.19 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1992 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Methylsulfonyl Standards
- 3-Ethyl-4-(methylsulfonyl)-1H-pyrazol-5-amine (CAS 1071184-86-5)
- 1-Methyl-3-((methylsulfonyl)methyl)-1h-pyrazol-5-amine (CAS 1339123-46-4)
- 1-Methyl-5-((methylsulfonyl)methyl)-1H-pyrazol-4-amine (CAS 1707568-05-5)
- 6-(Methylsulfonyl)spiro[3.3]heptan-2-amine (CAS 2740597-65-1)
- [1-(Methylsulfonyl)-4-pyrazolyl]boronic Acid (CAS 1201643-87-9)
- 3-(Methylsulfonyl)benzenethiol (CAS 3814-24-2)
- 1-(Methylsulfonyl)piperidine-3-carbonitrile (CAS 1087798-44-4)
- 5-(Methylsulfonyl)furan-3-carboxylic Acid (CAS 1520606-32-9)
Recommended Standards
- 8-Fluoro-5-methylquinoline-2-carbaldehyde (CAS 1420799-99-0)
- 4-AMINOPHENYL HYDROGEN SULFATE (CAS 15658-52-3)
- 6-Fluoro-5-methylquinoline-2-carbaldehyde (CAS 1420799-86-5)
- 1-(7-Fluoroquinolin-6-yl)ethanone (CAS 1635407-21-4)
- 3-(3-Nitrophenyl)-1,4-diazaspiro[4.4]nonan-2-one (CAS 1272755-82-4)
- 4-Bromo-3-chloro-6-(difluoromethyl)-2-methylpyridine (CAS 1806031-22-0)
- (2S,3R,4S)-3,4-Dihydroxypyrrolidine-2-carboxylic acid (CAS 95341-64-3)
- 3-(Difluoro(pyridin-2-yl)methyl)-1H-1,2,4-triazol-5-amine (CAS 1823188-10-8)
- [6-(2-Methoxyethoxy)pyridin-3-yl]methanamine (CAS 1016724-24-5)
- 1-(5-Methylpyrazin-2-yl)piperidin-4-one (CAS 1400706-83-3)
- C-(5-p-Tolyl-[1,2,4]oxadiazol-3-yl)-methylaminehydrochloride (CAS 1172854-26-0)
- (E)-3-(3-((4-iodo-3,5-dimethyl-1H-pyrazol-1-yl)methyl)-4-methoxyphenyl)acrylic acid (CAS 1173463-34-7)
- 3-(3,5-Dimethylpyridin-4-yl)propan-1-amine (CAS 1393543-15-1)
- D-β-Asp9-Tirzepatide (CAS CATO-CPTD788932)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com