p-Phenylenedipropionic acid

对苯二丙酸

Also known as: 1,4-Phenylenedipropionic acid, 1,4-Benzenedipropanoic acid, 3,3'-(1,4-Phenylene)dipropionic acid, 3,3'-(p-phenylene)dipropionic acid, 3-[4-(2-carboxyethyl)phenyl]propanoic acid, p-Benzenedipropionic acid, para-Isophenyldipropanoic acid

p-Phenylenedipropionic acid (CAS 4251-21-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C12H14O4 and a molecular weight of 222.23700 g/mol. It is also known as 1,4-Phenylenedipropionic acid, 1,4-Benzenedipropanoic acid and 3,3'-(1,4-Phenylene)dipropionic acid. Key properties include a melting point of 231-234 °C(lit.), a boiling point of 423.8ºC at 760mmHg, a density of 1.253g/cm3 and a flash point of 224.3ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
4251-21-2
Jingsj CID
J-22311-9
Molecular Formula
C12H14O4
Chinese Name
对苯二丙酸
Molecular Weight
222.23700 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point231-234 °C(lit.)
Boiling Point423.8ºC at 760mmHg
Density1.253g/cm3
Flash Point224.3ºC

Frequently Asked Questions

What is the CAS number of p-Phenylenedipropionic acid?

The CAS number of p-Phenylenedipropionic acid is 4251-21-2.

What are the molecular formula and molecular weight of p-Phenylenedipropionic acid?

p-Phenylenedipropionic acid has molecular formula C12H14O4 and molecular weight 222.23700 g/mol.

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

Last updated:

How to cite: Jingsj. "p-Phenylenedipropionic acid (CAS 4251-21-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-22311-9 (accessed 2026-10-24).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.