3-(5-Amino-3-methyl-1H-pyrazol-1-yl)benzenesulfonic acid CAS 23646-86-8
| CAS No. | 23646-86-8 |
| Molecular Formula | C10H11N3O3S |
| Molecular Weight | 253.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3-(5-Amino-3-methyl-1H-pyrazol-1-yl)benzenesulfonic acid is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
3-(5-Amino-3-methyl-1H-pyrazol-1-yl)benzenesulfonic acid (CAS 23646-86-8) is a high-purity analytical reference standard with the molecular formula C10H11N3O3S and a molecular weight of 253.28 g/mol.
Based on its molecular formula C10H11N3O3S, 3-(5-Amino-3-methyl-1H-pyrazol-1-yl)benzenesulfonic acid contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 253.28 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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-(5-Amino-3-methyl-1H-pyrazol-1-yl)benzenesulfonic acid 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 | C10H11N3O3S |
| Molecular Weight | 253.28 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Amino Standards
- Methyl 4-amino-2-((furan-2-ylmethyl)amino)thiazole-5-carboxylate (CAS 1193388-37-2)
- Ethyl 2-amino-4-(1-methyl-1H-1,2,4-triazol-5-yl)thiazole-5-carboxylate (CAS 1229426-21-4)
- 4-Amino-N-(4-methylisoxazol-3-yl)benzenesulfonamide (CAS 1829-84-1)
- 2-(6-Amino-9H-purin-8-ylsulfanyl)-butyric acid (CAS 436086-77-0)
- 3-Amino-N-(5-methyl-1,2-oxazol-3-yl)benzene-1-sulfonamide (CAS 954563-97-4)
- 4-Amino-2-(methylamino)-N-(5-methylisoxazol-3-yl)thiazole-5-carboxamide (CAS 664999-78-4)
- 5-amino-1-(4-methylbenzenesulfonyl)-2,3-dihydro-1H-pyrazol-3-one (CAS 240117-38-8)
- Ethyl 7-amino-2-(methylthio)-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate (CAS 90559-98-1)
Recommended Standards
- 3-(3-Methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonamide (CAS 89-29-2)
- 3-(5-Formylimidazo[2,1-b]thiazol-6-yl)benzonitrile (CAS 860788-32-5)
- 2-Cyano-N-(4-sulfamoylbenzyl)acetamide (CAS 32933-42-9)
- 3-(5-Imino-3-methyl-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonic acid (CAS 68083-38-5)
- 2,4,6-Trichloro-3-nitropyridine (CAS 60186-13-2)
- 5-((4-Amino-2-fluorophenyl)amino)-8-methylpyrido[2,3-d]pyrimidine-4,7(3H,8H)-dione (CAS 1035556-26-3)
- Promurit (CAS 5836-73-7)
- Ethyl 5-chloroimidazo[1,5-a]pyridine-1-carboxylate (CAS 885271-54-5)
- Benzylpenicillin Impurity 66 (CAS 59034-29-6)
- (S)-N-(2-Oxotetrahydrofuran-3-yl)-2-(pentylthio)acetamide (CAS 847061-51-2)
- 3-Ethyl-2-methyl-5-phenylbenzo[d]oxazol-3-ium iodide (CAS 54919-49-2)
- Apixaban Impurity 118 (CAS 2818923-97-4)
- 6-(CHloromethyl)pyrimidin-4-ol (CAS 94171-03-6)
- Insulin Degludec Impurity 13 (CAS CATO-C4X-215713)
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