2-(3-Methyl-4-nitro-1h-pyrazol-1-yl)propanehydrazide CAS 895930-71-9
| CAS No. | 895930-71-9 |
| Molecular Formula | C7H11N5O3 |
| Molecular Weight | 213.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2-(3-Methyl-4-nitro-1h-pyrazol-1-yl)propanehydrazide (CAS 895930-71-9), molecular formula C7H11N5O3 and molecular weight 213.19 g/mol, is a CATO reference standard with documented purity and traceability.
2-(3-Methyl-4-nitro-1h-pyrazol-1-yl)propanehydrazide (C7H11N5O3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C7H11N5O3 |
| Molecular Weight | 213.19 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 5 |
Related Methyl Standards
- 1001499-99-5 3-(3-Methyl-4-nitro-pyrazol-1-yl)-propionic acid methyl ester 3-(3-methyl-4-nitro-pyrazol-1-yl)-propionic acid m ethyl ester (CAS 1001499-99-5)
- 3-(5-Methyl-3-nitro-1H-pyrazol-1-yl)propanohydrazide (CAS 1001755-69-6)
- 2-Methyl-2-(4-nitro-1h-pyrazol-1-yl)propanehydrazide (CAS 1002034-04-9)
- 3-(3-Methyl-4-nitro-1h-pyrazol-1-yl)propanehydrazide (CAS 1004644-57-8)
- 3-(5-Methyl-4-nitro-1h-pyrazol-1-yl)propanehydrazide (CAS 1004644-61-4)
- Ethyl 2-(4-nitro-1h-pyrazol-1-yl)propanoate (CAS 1005576-81-7)
- 2-(5-Methyl-3-nitro-1H-pyrazol-1-yl)propanehydrazide (CAS 1005576-88-4)
- 2-(5-Methyl-3-nitro-1h-pyrazol-1-yl)butanoic acid (CAS 1005577-15-0)
Recommended Standards
- 2-(3,5-Dimethyl-4-nitro-pyrazol-1-yl)-propionic acid (CAS 887408-84-6)
- 2-(5-Ethoxyoxazole-2-carbonyl)hydrazinecarboximidamide (CAS 398996-54-8)
- 2-(3,5-Dimethyl-4-nitro-1h-pyrazol-1-yl)acetohydrazide (CAS 514800-91-0)
- 2-(Dimethylamino)-6-(methylamino)-5-nitropyrimidin-4(3H)-one (CAS 883-73-8)
- 3-Amino-6,7-difluoro-1H-indazole (CAS 706805-37-0)
- 2-(Methylsulfonamido)-2-phenylacetic acid (CAS 90774-44-0)
- 1,4-Dibenzylpiperazine-d4 Dihydrochloride (CAS 118221-01-5)
- Cefpodoxime Proxetil EP Impurity A (CAS 80210-62-4)
- 6-Bromopyrrolo[1,2-a]pyrazin-1-amine (CAS 2052589-16-7)
- (Tetrahydro-2h-pyran-4-yl)(o-tolyl)methanamine (CAS 1343470-62-1)
- (2E)-3-(2-Ethoxyphenyl)-1-(4-ethoxyphenyl)prop-2-en-1-one (CAS 358343-61-0)
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