alpha-Methoxy-alpha-trifluoromethylphenylacetic acid
[CAS# 81655-41-6]

Identification

• Classification: Analytical chemistry >> Analytical reagent >> Common analytical reagents
• Name: alpha-Methoxy-alpha-trifluoromethylphenylacetic acid
• Synonyms: 3,3,3-Trifluoro-2-methoxy-2-phenylpropanoic acid; DL-alpha-Methoxy-alpha-(trifluoromethyl)phenylacetic acid; MTPA; Mosher's acid
• Molecular Formula: C₁₀H₉F₃O₃
• Molecular Weight: 234.17
• CAS Registry Number: 81655-41-6
• EC Number: 625-074-7

Properties

• Solubility: Very slightly soluble (0.89 g/L) (25 ºC), Calc.^*
• Density: 1.349±0.06 g/cm³ (20 ºC 760 Torr), Calc.^*

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

Safety Data

• Hazard Symbols: Xi
• Risk Codes: R36/37/38
• Safety Description: S26;S36

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Specific target organ toxicity - single exposure	STOT SE	3	H335
Eye irritation	Eye Irrit.	2	H319
Skin irritation	Skin Irrit.	2	H315
Acute toxicity	Acute Tox.	4	H302
Acute toxicity	Acute Tox.	4	H312
Acute toxicity	Acute Tox.	4	H332