(E)-N'-(1-(2-Hydroxyphenyl)ethylidene)-3-isopropyl-1H-pyrazole-5-carbohydrazide CAS 1285540-29-5
| CAS No. | 1285540-29-5 |
| Molecular Formula | C15H18N4O2 |
| Molecular Weight | 286.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies (E)-N'-(1-(2-Hydroxyphenyl)ethylidene)-3-isopropyl-1H-pyrazole-5-carbohydrazide (CAS 1285540-29-5), a certified reference material (molecular formula C15H18N4O2, MW 286.33 g/mol) for analytical method development and quality control.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, (E)-N'-(1-(2-Hydroxyphenyl)ethylidene)-3-isopropyl-1H-pyrazole-5-carbohydrazide is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 286.33 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), (E)-N'-(1-(2-Hydroxyphenyl)ethylidene)-3-isopropyl-1H-pyrazole-5-carbohydrazide 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 | C15H18N4O2 |
| Molecular Weight | 286.33 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 4 |
Recommended Standards
- n-((5-Sulfamoylthiophen-2-yl)methyl)furan-2-carboxamide (CAS 1281007-69-9)
- N-{4-[(oxan-4-yl)amino]phenyl}furan-2-carboxamide (CAS 1311757-29-5)
- ethyl 1-(2-cyano-4-formylphenyl)piperidine-4-carboxylate (CAS 1272756-67-8)
- 3-(4-Methoxybenzyl)-5,6,7,8-tetrahydroquinazoline-2,4(1H,3H)-dione (CAS 1313712-33-2)
- 8-Mercapto-1,3,7-trimethyl-3,7-dihydro-1H-purine-2,6-dione (CAS 1790-74-5)
- 2-[(2-Formylphenoxy)methyl]benzonitrile (CAS 129053-56-1)
- N-(2-Hydroxy-2-(thiophen-2-yl)ethyl)pent-4-enamide (CAS 1795483-24-7)
- 1-(2-Bromophenoxy)-2-methyl-4-nitrobenzene (CAS 1152822-02-0)
- 2-Chloroacetaldehyde oxime (CAS 51451-05-9)
- 2-((3-Chloro-4,5-dimethoxybenzyl)amino)ethan-1-ol (CAS 893574-06-6)
- 1-Allyl-3-(tert-butyl)thiourea (CAS 68487-24-1)
- 5-Formyl-4-methyl-1H-pyrrole-2-carboxylic acid (CAS 280748-43-8)
- N1-(2-aminophenyl)-N8-phenyloctanediamide (CAS 537034-17-6)
- Semaglutide impurity 73 (CAS CATO-C4X-222673)
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