1-Benzyl-3-nitro-1h-pyrazole-5-carbohydrazide CAS 514800-74-9
| CAS No. | 514800-74-9 |
| Molecular Formula | C11H11N5O3 |
| Molecular Weight | 261.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 1-Benzyl-3-nitro-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.
1-Benzyl-3-nitro-1h-pyrazole-5-carbohydrazide (CAS 514800-74-9), molecular formula C11H11N5O3 and molecular weight 261.24 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C11H11N5O3, 1-Benzyl-3-nitro-1h-pyrazole-5-carbohydrazide contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 261.24 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.
Physical & Chemical Properties
| Molecular Formula | C11H11N5O3 |
| Molecular Weight | 261.24 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 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Nitrogen Atoms | 5 |
Related Benzyl Standards
- 3-((4-Nitro-1h-pyrazol-1-yl)methyl)benzohydrazide (CAS 387345-01-9)
- 4-((4-Nitro-1h-pyrazol-1-yl)methyl)benzohydrazide (CAS 514800-73-8)
- 2-((5-Methyl-3-nitro-1h-pyrazol-1-yl)methyl)benzoic acid (CAS 1004194-55-1)
- Methyl 2-((4-nitro-1h-pyrazol-1-yl)methyl)benzoate (CAS 1005612-69-0)
- 3-((5-Methyl-3-nitro-1H-pyrazol-1-yl)methoxy)benzaldehyde (CAS 1006435-99-9)
- 4-((5-Methyl-3-nitro-1H-pyrazol-1-yl)methoxy)benzaldehyde (CAS 1006953-72-5)
- 2-((5-Methyl-3-nitro-1H-pyrazol-1-yl)methoxy)benzaldehyde (CAS 1177343-92-8)
- Ethyl 2-Nitro-4-(1-pyrazolyl)benzoate (CAS 1375064-66-6)
Recommended Standards
- 1-(4-(Diethylamino)-2-hydroxyphenyl)-2,2,2-trifluoroethan-1-one (CAS 333303-11-0)
- 2-((Tetrahydrofuran-2-yl)methoxy)-5-(trifluoromethyl)aniline (CAS 309282-21-1)
- [4'-(Trifluoromethyl)[1,1'-biphenyl]-4-yl] acetonitrile (CAS 871252-44-7)
- 2-(4-Trifluoromethylphenyl)indole, 97% (CAS 243971-02-0)
- (R)-2-((tert-butoxycarbonyl)amino)-4-(4-chlorophenyl)butanoic acid (CAS 157683-98-2)
- 2,3,6-Trimethylphenol-d11 (CAS 347841-83-2)
- 2-(8-(4-Methoxyphenyl)-3,4-dioxo-3,4,7,8-tetrahydroimidazo[2,1-c][1,2,4]triazin-2(6H)-yl)acetonitrile (CAS 941996-02-7)
- 1-[3-[4-[2-[(4-Chloro-5-cyclopropyl-2-hydroxyphenyl)amino]acetyl]-1-piperazinyl]-1-azetidinyl]-2-propen-1-one (CAS 1629267-75-9)
- Edoxaban Impurity 70 (CAS CATO-C4X-106370)
- 5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)benzo[d]oxazol-2-amine (CAS 1224844-66-9)
- Ethyl 4-(3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy)butanoate (CAS 850411-09-5)
- 4-(Chloromethyl)-N-(3,4-difluorophenyl)benzamide (CAS 500568-86-5)
- Methyl 1H-Indazole-7-carboxylate (CAS 755752-82-0)
- Semaglutide Impurity 246 (CAS CATO-C4X-2226246)
Why CATO?
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