1-Methyl-3-(trifluoromethyl)-1H-pyrazole-5-carboxylic acid
[CAS# 128694-63-3]

Identification

• Name: 1-Methyl-3-(trifluoromethyl)-1H-pyrazole-5-carboxylic acid
• Synonyms: 2-Methyl-5-trifluoromethyl-2H-pyrazole-3-carboxylic acid
• Molecular Formula: C₆H₅F₃N₂O₂
• Molecular Weight: 194.11
• CAS Registry Number: 128694-63-3
• EC Number: 673-161-3

Properties

• Solubility: Slightly soluble (1.1 g/L) (25 °C), Calc.^*
• Density: 1.56±0.1 g/cm³ (20 °C 760 Torr), Calc.^*
• Melting point: 131-133 °C^**
• Boiling point: 288.8±40.0 °C (760 Torr), Calc.^*
• Flash point: 128.4±27.3 °C, Calc.^*

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (©1994-2014 ACD/Labs)

^** Fustero, Santos

Safety Data

• Hazard Symbols: Xn
• Risk Statements: R22

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Acute toxicity	Acute Tox.	4	H302
Skin irritation	Skin Irrit.	2	H315
Specific target organ toxicity - single exposure	STOT SE	3	H335
Eye irritation	Eye Irrit.	2A	H319
Eye irritation	Eye Irrit.	2	H319
Acute toxicity	Acute Tox.	4	H312