4-(o-Tolyl)-1-tosyl-1H-pyrazol-5-amine CAS 1003992-24-2
| CAS No. | 1003992-24-2 |
| Molecular Formula | C17H17N3 |
| Molecular Weight | 263.34 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.
4-(o-Tolyl)-1-tosyl-1H-pyrazol-5-amine (CAS 1003992-24-2) is a high-purity analytical reference standard with the molecular formula C17H17N3 and a molecular weight of 263.34 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, 4-(o-Tolyl)-1-tosyl-1H-pyrazol-5-amine is typically pale yellow to yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 263.34 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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), 4-(o-Tolyl)-1-tosyl-1H-pyrazol-5-amine 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 | C17H17N3 |
| Molecular Weight | 263.34 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Nitrogen Atoms | 3 |
Related o Standards
- 4-(m-Tolyl)-1-tosyl-1H-pyrazol-5-amine (CAS 1003992-23-1)
- 3-(m-Tolyl)-1-(o-tolyl)-1H-pyrazol-5-amine (CAS 618098-38-7)
- 3-(M-tolyl)-1-(p-tolyl)-1h-pyrazol-5-amine (CAS 618092-88-9)
- 3-(O-tolyl)-1-(p-tolyl)-1h-pyrazol-5-amine (CAS 618092-90-3)
- 4-(o-Tolyl)quinoline-3-carboxylic acid (CAS 107419-47-6)
- 2-(O-tolyl)quinoline-4-carboxylic acid (CAS 174636-85-2)
- 3-(p-Tolyl)quinolin-4-yl hydrogen carbonate (CAS 19571-23-4)
- 1-(p-Tolyl)isoquinoline-3-carboxylic acid (CAS 89242-17-1)
Recommended Standards
- 5-(3-Aminothieno[2,3-b]pyridin-2-yl)-4-methyl-4H-1,2,4-triazole-3-thiol (CAS 1030430-84-2)
- Iptacopan Impurity 4 (CAS 1644667-61-7)
- Benzyl 4-(2-aminoethyl)piperazine-1-carboxylate (CAS 104740-55-8)
- Sacubitril impurity 15 (CAS CATO-C4X-280915)
- 2-chloro-7-(trifluoromethyl)-3,4-dihydroquinazolin-4-one (CAS 159870-93-6)
- 5-Methyl-1H-benzo[d]imidazole-7-carbonitrile (CAS 245096-16-6)
- 4-[4-(4'-Chlorobiphenyl-2-ylmethyl)piperazin-1-yl]benzoic Acid-d8 (CAS 1246819-26-0)
- N-fluoro-3,5-dichloropyridiniumtetrafluoroborate (CAS 109705-15-9)
- 4-(4-(Methylthio)phenyl)-1,4-dihydrobenzo[4,5]imidazo[1,2-a][1,3,5]triazin-2-amine (CAS 452285-32-4)
- 2-{[3,5-bis(trifluoromethyl)phenyl]amino}-4-(dimethylamino)pyridine-3-carbonitrile (CAS 338773-84-5)
- Bumetanide Impurity 133 (CAS CATO-C4X-1986133)
- Sugammadex Impurity 43 (CAS 1378831-29-8)
- 2-Isobutyloxazole-4-carboxylic acid (CAS 1248373-18-3)
- Mitogenic Pentapeptide (CAS 87173-03-3)
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