(R)-(+)-α-Methoxy-α-(trifluoromethyl)phenylacetic acid
(R)-(+)-α-甲氧基-α-(三氟甲基)苯乙酸
Also known as: (+) -Mosher's acid, (+)-MTPA, Mosher's acid, R-Mosher's acid, (2R)-3,3,3-Trifluoro-2-methoxy-2-phenylpropanoic acid, (R)-3,3,3-Trifluoro-2-methoxy-2-phenylpropanoic acid, (R)-(+)-alpha-Methoxy-alpha-(trifluoromethyl)phenylacetic acid, (R)-(+)-alpha-Methoxy-alpha-trifluoromethylphenylacetic acid, (R)-(+)-1-Methoxy-1-(trifluoromethyl)phenylacetic acid, Benzeneacetic acid, α-methoxy-α-(trifluoromethyl)-, (R)-
(R)-(+)-α-Methoxy-α-(trifluoromethyl)phenylacetic acid (CAS 20445-31-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H9F3O3 and a molecular weight of 234.172 g/mol. It is also known as (+) -Mosher's acid, (+)-MTPA and Mosher's acid. Key properties include a melting point of 46-49ºC, a boiling point of 287.2±0.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 134.2±27.3 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 20445-31-2
- Jingsj CID
- J-17290-9
- Molecular Formula
- C10H9F3O3
- Chinese Name
- (R)-(+)-α-甲氧基-α-(三氟甲基)苯乙酸
- Molecular Weight
- 234.172 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 46-49ºC |
|---|---|
| Boiling Point | 287.2±0.0 °C at 760 mmHg |
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 134.2±27.3 °C |
GHS Safety & Compliance
Frequently Asked Questions
What is the CAS number of (R)-(+)-α-Methoxy-α-(trifluoromethyl)phenylacetic acid?
The CAS number of (R)-(+)-α-Methoxy-α-(trifluoromethyl)phenylacetic acid is 20445-31-2.
What are the molecular formula and molecular weight of (R)-(+)-α-Methoxy-α-(trifluoromethyl)phenylacetic acid?
(R)-(+)-α-Methoxy-α-(trifluoromethyl)phenylacetic acid has molecular formula C10H9F3O3 and molecular weight 234.172 g/mol.
Is (R)-(+)-α-Methoxy-α-(trifluoromethyl)phenylacetic acid hazardous?
(R)-(+)-α-Methoxy-α-(trifluoromethyl)phenylacetic acid has GHS signal word Warning.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "(R)-(+)-α-Methoxy-α-(trifluoromethyl)phenylacetic acid (CAS 20445-31-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-17290-9 (accessed 2026-10-22).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.