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| CAS No.: | 35344-95-7 |
|---|---|
| Name: | 1H-Pyrazole-4-carboxaldehyde |
| Article Data: | 13 |
| Molecular Structure: | |
|
|
|
| Formula: | C4H4N2O |
| Molecular Weight: | 96.0886 |
| Synonyms: | 4-Formylpyrazole;4-Pyrazolecarboxaldehyde; |
| EINECS: | 636-879-8 |
| Density: | 1.322 g/cm3 |
| Melting Point: | 82-83 °C(Solv: cyclohexane (110-82-7)) |
| Boiling Point: | 300 °C at 760 mmHg |
| Flash Point: | 139.7 °C |
| Hazard Symbols: |
 Xi
|
| PSA: | 45.75000 |
| LogP: | 0.22220 |
- 483366-12-7(2S,4R)-1-Boc-2-cyano-4-hydroxypyrrolidine
- 361456-36-2METHYL (R)-(+)-ISOCYANATO-3-PHENYLPROPI&
- 5156-58-1N-(1-Benzyl-4-pipperidinyl)-N-phenylpropanamide HCl
- 81281-59-67-Benzylideneaminotheophylline
- 50288-62-5threo-Phenyl-2-piperidyl acetamide
- 82993-81-5D-threo-Ritalinic acid hydrochloride
- 47087-37-6Z-D-Glu-OMe
- 73441-42-6METHYL-5-CHLORO-2,2-DIMETHYLVALERATE
- 68439-39-4Poly(oxy-1,2-ethanediyl), alpha-(2-ethylhexyl)-omega-hydroxy-,
- 852475-26-4MC1568
- 37622-90-5
4-ethoxycarbonylpyrazole
- 35344-95-7
1H-pyrazole-4-carbaldehyde
| Conditions | Yield |
|---|---|
| With n-butyllithium; diisobutylaluminium hydride; tert-butyl alcohol In tetrahydrofuran; hexane at 0℃; | 97% |
- 18655-47-5
triformylmethane
- 35344-95-7
1H-pyrazole-4-carbaldehyde
| Conditions | Yield |
|---|---|
| With hydrazine hydrate In methanol at 20℃; for 5h; | 87% |
| With hydrogenchloride; hydrazine hydrate In methanol for 22h; Ambient temperature; | 52% |
| With hydrogenchloride; hydrazine hydrate In methanol for 22h; Ambient temperature; other hydrazines and amidines; | 52% |
| With hydrogenchloride; hydrazine In methanol at 20℃; for 22h; |
- 25222-43-9
(1H-pyrazol-4-yl)-methanol
- 35344-95-7
1H-pyrazole-4-carbaldehyde
| Conditions | Yield |
|---|---|
| With manganese(IV) oxide In acetone at 60℃; for 4h; | 52.33% |
| With manganese(IV) oxide In acetone at 20 - 60℃; |
- 2075-45-8
4-bromo-1H-pyrazole
- 68-12-2, 33513-42-7
N,N-dimethyl-formamide
- 35344-95-7
1H-pyrazole-4-carbaldehyde
| Conditions | Yield |
|---|---|
| Stage #1: 4-bromo-1H-pyrazole With tert.-butyl lithium In tetrahydrofuran; hexane at -78 - 20℃; for 3.5h; Stage #2: N,N-dimethyl-formamide In tetrahydrofuran; hexane at 20℃; | 41% |
- 35344-95-7
1H-pyrazole-4-carbaldehyde
| Conditions | Yield |
|---|---|
| With hydrogenchloride In 1,4-dioxane at 60℃; | 0.4 g |
- 153687-35-5
1-(4-methoxybenzyl)-1H-pyrazole-4-carbaldehyde
- 35344-95-7
1H-pyrazole-4-carbaldehyde
| Conditions | Yield |
|---|---|
| With trifluoroacetic acid for 2h; Heating / reflux; |
- 68-12-2, 33513-42-7
N,N-dimethyl-formamide
- 591-86-6
acetaldehyde semicarbazone
- 35344-95-7
1H-pyrazole-4-carbaldehyde
| Conditions | Yield |
|---|---|
| Stage #1: N,N-dimethyl-formamide With trichlorophosphate at 0℃; for 1h; Stage #2: acetaldehyde semicarbazone at 80℃; for 1.5h; |
A
- 35344-95-7
1H-pyrazole-4-carbaldehyde
B
- 112253-17-5
6-nitro-<1,2,5>oxadiazolo<3,4-b>pyridine 1-oxide
| Conditions | Yield |
|---|---|
| In dimethylsulfoxide-d6 |
- 1197943-43-3
1-(tetrahydro-2H-pyran-2-yl)-1H-pyrazole-4-carboxaldehyde
- 35344-95-7
1H-pyrazole-4-carbaldehyde
| Conditions | Yield |
|---|---|
| With hydrogenchloride In water at 20℃; pH=< 1; | 6 g |
- 373-88-6
2,2,2-trifluroethylamine hydrochloride
- 35344-95-7
1H-pyrazole-4-carbaldehyde
- 1424799-64-3
(1H-pyrazol-4-ylmethylene)(2,2,2-trifluoroethyl)amine
| Conditions | Yield |
|---|---|
| With sodium hydroxide In water; toluene at 20℃; Cooling with ice; | 100% |
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Chemistry
Molecular Structure:
Molecular Formula: C4H4N2O
Molecular Weight: 96.0874
IUPAC Name: 1H-Pyrazole-4-carbaldehyde
Synonyms of 1H-Pyrazole-4-carboxaldehyde (CAS NO.35344-95-7): 1H-Pyrazole-4-carbaldehyde ; Akos bb-9811
CAS NO: 35344-95-7
Product Categories: Aldehydes ; Pyrazoles & Triazoles ; Pyrazoles & Triazoles
Index of Refraction: 1.62
Molar Refractivity: 25.53 cm3
Molar Volume: 72.6 cm3
Surface Tension: 64.7 dyne/cm
Density: 1.322 g/cm3
Flash Point: 139.7 °C
Enthalpy of Vaporization: 54 kJ/mol
Boiling Point: 300 °C at 760 mmHg
Vapour Pressure of 1H-Pyrazole-4-carboxaldehyde (CAS NO.35344-95-7): 0.00115 mmHg at 25°C
Safety Profile
Hazard Codes of 1H-Pyrazole-4-carboxaldehyde (CAS NO.35344-95-7): 
Xi
HazardClass: IRRITANT