5-Methyl-2-Phenyl-1,2-Dihydro-3H-Pyrazol-3-One(CAS 19735-89-8)
| Purity | Grade | Package | Stock | Price | Quantity |
| 98% | RG | 5G | In Stock | 4 USD
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| 98% | RG | 25G | In Stock | 19 USD
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| 98% | RG | 100G | In Stock | 39 USD
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| 98% | RG | 500G | In Stock | 140 USD
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| 98% | RG | 2.5KG | In Stock | 1100 USD
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Applications of 19735-89-8
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Synthesis intermediate for the antipyretic and analgesic drug metamizole | Diazotized with N-methylaniline and sodium nitrite under acidic conditions, followed by condensation and cyclization with acetone, then reduction and methylation to produce metamizole |
| Dyes | Color-developing agent and auxochrome for azo dyes and triarylmethane dyes | Acts as a coupling component reacting with diazonium salts to form azo dyes of specific hues; also used to adjust dye pH sensitivity and hue stability |
| Analytical Chemistry | Colorimetric reagent for metal ions (e.g., Fe³⁺, Cu²⁺, Ni²⁺) in spectrophotometric analysis | Forms stable colored complexes with target metal ions in weakly acidic media, enabling concentration determination via spectrophotometry |
| Pesticides | Structural building block in certain insecticides and plant growth regulators | Serves as a heterocyclic core in constructing biologically active molecular frameworks, e.g., as a synthetic precursor for selected pyrazole derivatives |
Physical and chemical properties of 19735-89-8
Acidity coefficient |
0.10±0.40(Predicted) |
|---|---|
Boiling Point |
276.4±23.0 °C at 760 mmHg |
Density |
1.2±0.1 g/cm3 |
Exact Mass |
174.079315 |
Flash Point |
121.0±22.6 °C |
Index of Refraction |
1.587 |
LogP |
1.72 |
Melting Point |
130 °C |
Molecular Formula |
C10H10N2O |
Molecular Weight |
174.199 |
PSA |
37.79000 |
Solubility |
380.9 mg/L @ 25 °C (est) |
Vapour Pressure |
0.0±0.6 mmHg at 25°C |
Spectrums of 19735-89-8
1.The NMR spectrum displayed on the page is a pre-sale reference spectrum and may differ from that of the actual received batch.
2.The accompanying documentation will include the NMR spectrum and purity analysis data for the shipped batch.
Retrosynthesis analysis of 19735-89-8
Cas:89-25-8
Cas:100-63-0
Cas:105-45-3
Q&A for CAS 19735-89-8
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Download SDS of 19735-89-8
Pictograms |
 |
|---|---|
Signal Word |
Warning |
Hazard Statements |
H302 Harmful if swallowed H315 Causes skin irritation H319 Causes serious eye irritation H335 May cause respiratory irritation |
Safety Data Sheet |
Download COA of 19735-89-8
Operate under the ISO 9001 system
