| Identification | Back Directory | [Name]
1,4-Dimethyl-1H-pyrazole-3-carboxylic acid | [CAS]
89202-89-1 | [Synonyms]
1,4-DiMethylpyrazole-3-carboxylic acid
1,4-Dimethyl-1H-pyrazole-3-carboxylic acid
1H-Pyrazole-3-carboxylic acid, 1,4-dimethyl- | [EINECS(EC#)]
604-604-1 | [Molecular Formula]
C6H8N2O2 | [MDL Number]
MFCD19228348 | [MOL File]
89202-89-1.mol | [Molecular Weight]
140.14 |
| Chemical Properties | Back Directory | [Boiling point ]
305.4±22.0 °C(Predicted) | [density ]
1.28±0.1 g/cm3(Predicted) | [storage temp. ]
2-8°C | [pka]
3.82±0.34(Predicted) | [Appearance]
White to off-white Solid |
| Hazard Information | Back Directory | [Synthesis]
Ethyl 1,4-dimethyl-1H-pyrazole-3-carboxylate (440 mg, 2.62 mmol) was added to 1N aqueous sodium hydroxide (3 mL, 3 mmol) and ethanol (3 mL), and the reaction was carried out according to the same method as in Example 20 of the reference to obtain pale yellow crystalline 1,4-dimethyl-1H-pyrazole-3-carboxylic acid (152 mg, 41% yield). The product was characterized by 1H-NMR (CDCl3, 300 MHz): δ 2.30 (3H, s), 3.92 (3H, s), 7.21 (1H, s). | [References]
[1] Agricultural and Biological Chemistry, 1984, vol. 48, # 1, p. 45 - 50
[2] Patent: US2009/137595, 2009, A1 |
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