3-Ethyl-4-(methylsulfonyl)-1H-pyrazol-5-amine CAS 1071184-86-5
| CAS No. | 1071184-86-5 |
| Molecular Formula | C6H11N3O2S |
| Molecular Weight | 189.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 3-Ethyl-4-(methylsulfonyl)-1H-pyrazol-5-amine.
3-Ethyl-4-(methylsulfonyl)-1H-pyrazol-5-amine (CAS 1071184-86-5), molecular formula C6H11N3O2S and molecular weight 189.24 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C6H11N3O2S, 3-Ethyl-4-(methylsulfonyl)-1H-pyrazol-5-amine contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 189.24 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 3-Ethyl-4-(methylsulfonyl)-1H-pyrazol-5-amine under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C6H11N3O2S |
| Molecular Weight | 189.24 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.) | 1988 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Ethyl Standards
- 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)-1H-pyrrole-3-carboxylic acid (CAS 1521806-48-3)
- [1-(Methylsulfonyl)-4-pyrazolyl]boronic Acid (CAS 1201643-87-9)
- 5-(Methylsulfonyl)furan-3-carboxylic Acid (CAS 1520606-32-9)
- 5-(Methylsulfonyl)furan-2-carboxylic Acid (CAS 23423-91-8)
- 5-(Methylsulfonyl)pyrimidine-2,4(1H,3H)-dione (CAS 16417-11-1)
Recommended Standards
- Pyrrolo[1,2-a]thieno[2,3-e]pyrazin-6-amine (CAS 106723-67-5)
- 1-(2-Methanesulfonylethyl)-1h-pyrazol-3-amine (CAS 1093967-38-4)
- 6-(Pyridin-2-yl)pyridazine-3-thiol (CAS 1005036-25-8)
- 2-Cyano-3-pyridin-3-yl-thioacrylamide (CAS 109628-96-8)
- Diethyl 1-benzyl-5,5-difluoro-4-oxopiperidine-2,3-dicarboxylate (CAS 1881288-08-9)
- Ethyl 4-amino-2-hydroxybutanoate (CAS 735225-24-8)
- 3-Chloro-6-(prop-2-yn-1-ylamino)picolinic acid (CAS 1020948-43-9)
- Octahydroindolizin-2-ol (CAS 90204-24-3)
- 4-Cyanocyclohexanone Cyclic Ethylene Acetal (CAS 69947-09-7)
- 1,4-Dimethylpyrazole-3-carboxylic Acid (CAS 89202-89-1)
- 2-(((3-Chlorophenyl)amino)methyl)phenol (CAS 13160-55-9)
- 5-[(3-Fluorophenyl)methyl]-7-(trifluoromethyl)-1H,2H,3H,3aH,4H,5H-pyrrolo[1,2-a]quinoxalin-4-one (CAS 1008495-00-8)
- 3-Ethoxy-4-((2-fluorobenzyl)oxy)benzohydrazide (CAS 1706453-14-6)
- Gly-Neuroendocrine Regulatory Peptide-3 (human, mouse, rat) trifluoroacetate salt (CAS 1815618-19-9)
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