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(R)-(-)-2-Phenylpropionic acid

Also known as: (R)-2-Phenylpropanoic acid, (R)-(-)-Hydratropic acid, (R)-(-)-2-Phenylpropionic acid, (R)-(-)-α-Methylphenylacetic acid, (R)-Hydratropic acid, (-)-Hydratropic acid

(R)-(-)-2-Phenylpropionic acid (CAS 7782-26-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H10O2 and a molecular weight of 150.174 g/mol. Key properties include a melting point of 29-32ºC, a boiling point of 261.0±0.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 154.3±13.9 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
7782-26-5
Jingsj CID
J-10676-3
Molecular Formula
C9H10O2
Molecular Weight
150.174 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point29-32ºC
Boiling Point261.0±0.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point154.3±13.9 °C
Exact Mass150.068085
PSA37.30000
LogP1.85
Vapor Pressure0.0±0.5 mmHg at 25°C
Refractive Index1.539
Storage Conditions2-8℃

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Customs & Trade Information

HS Code2916399090
Summary2916399090 other aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of (R)-(-)-2-Phenylpropionic acid?

The CAS number of (R)-(-)-2-Phenylpropionic acid is 7782-26-5.

What are the molecular formula and molecular weight of (R)-(-)-2-Phenylpropionic acid?

(R)-(-)-2-Phenylpropionic acid has molecular formula C9H10O2 and molecular weight 150.174 g/mol.

Is (R)-(-)-2-Phenylpropionic acid hazardous?

(R)-(-)-2-Phenylpropionic acid has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of (R)-(-)-2-Phenylpropionic acid?

For (R)-(-)-2-Phenylpropionic acid, Upstream Products: Carbon dioxide, (1-Chloroethyl)benzene, DL-2-Phenylpropionic acid; Downstream Products: DL-2-Phenylpropionic acid, (S)-2-Phenylpropanoic acid.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "(R)-(-)-2-Phenylpropionic acid (CAS 7782-26-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-10676-3 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.