3,5-Dimethyl-1H-pyrazole-4-carboxylic acid

3,5-Dimethyl-1H-pyrazole-4-carboxylic acid - Names and Identifiers

Name	3,5-DIMETHYL-1H-PYRAZOLE-4-CARBOXYLIC ACID
Synonyms	10X-0856 AKOS PAO-0336 4-Carboxy-3,5-dimethyl-1H-pyrazole 3,5-Dimethylpyrazole-4-carboxylic Acid 3,5-diMethyl-1H-pyrazol-4-carboxylic acid 3,5-DIMETHYL-1H-PYRAZOLE-4-CARBOXYLIC ACID 3,5-Dimethyl-1H-pyrazole-4-carboxylic acid 1H-Pyrazole-4-carboxylicacid,3,5-dimethyl-(9CI)
CAS	113808-86-9
InChI	InChI=1/C6H8N2O2/c1-3-5(6(9)10)4(2)8-7-3/h1-2H3,(H,7,8)(H,9,10)

3,5-Dimethyl-1H-pyrazole-4-carboxylic acid - Physico-chemical Properties

Molecular Formula	C6H8N2O2
Molar Mass	140.14
Density	1.321±0.06 g/cm3(Predicted)
Melting Point	273 °C
Boling Point	368.3±37.0 °C(Predicted)
Flash Point	176.6°C
Vapor Presure	4.48E-06mmHg at 25°C
pKa	1.83±0.32(Predicted)
Storage Condition	Sealed in dry,Room Temperature
Refractive Index	1.581
MDL	MFCD00159642

3,5-Dimethyl-1H-pyrazole-4-carboxylic acid - Risk and Safety

Hazard Symbols	Xi - Irritant
Risk Codes	36/37/38 - Irritating to eyes, respiratory system and skin.
Safety Description	S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S37/39 - Wear suitable gloves and eye/face protection
HS Code	29331990
Hazard Class	IRRITANT

3,5-Dimethyl-1H-pyrazole-4-carboxylic acid - Introduction

3,5-Dimethyl-pyrazole-4-carboxylic acid is an organic compound with the chemical formula C8H9NO2. It is a colorless crystalline solid with a distinctive odor.

This compound has a wide range of applications in the field of chemical research and medicine. It can be used as an important intermediate in organic synthesis, for the synthesis of drugs, dyes and functional polymers and other compounds. In addition, it can also be used as a reagent and standard in the laboratory.

The preparation method of 3,5-dimethyl-pyrazole-4-carboxylic acid can be carried out by the following steps:
1.2-amino -3,5-dimethyl pyrazine and dimethyl carbonate are reacted in an organic solvent to generate 3,5-dimethyl-pyrazole -4-carboxylic acid dimethyl ester.
2. Under acidic conditions, 3,5-dimethyl-pyrazole -4-carboxylic acid dimethyl ester is hydrolyzed to give 3,5-dimethyl-pyrazole -4-carboxylic acid.

When using and storing 3,5-dimethyl-pyrazole -4-carboxylic acid, the following safety information should be noted:
1. avoid contact with skin and eyes, such as accidental contact should immediately rinse with plenty of water.
2. in the operation should wear appropriate protective measures, including wear gloves, glasses and experimental clothes.
3. avoid inhalation of its dust or steam, should be operated in a well-ventilated environment.
4. storage should be sealed, away from fire and oxidant.

Last Update：2024-04-09 20:52:54