4,4'-Isopropylidenediphenoxyacetic Acid

4,4'-异亚丙基二苯氧基乙酸

Also known as: 2,2'-[(1-Methylethylidene)bis(4,1-phenyleneoxy)]diacetic acid, 2,2'-[Isopropylidenebis[(4,1-phenylene)oxy]]bisacetic acid, 2,2'-[Propane-2,2-diylbis(1,4-phenyleneoxy)]diacetic acid, 2-[4-[2-[4-(carboxymethoxy)phenyl]propan-2-yl]phenoxy]acetic acid, Bisphenol A O,O-diacetic acid, 4,4'-Isopropylidenebisphenyldioxyacetic acid, [Isopropylidenebis(p-phenyleneoxy)]diacetic acid

4,4'-Isopropylidenediphenoxyacetic Acid (CAS 3539-42-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C19H20O6 and a molecular weight of 344.35900 g/mol. It is also known as 2,2'-[(1-Methylethylidene)bis(4,1-phenyleneoxy)]diacetic acid, 2,2'-[Isopropylidenebis[(4,1-phenylene)oxy]]bisacetic acid and 2,2'-[Propane-2,2-diylbis(1,4-phenyleneoxy)]diacetic acid. Key properties include a melting point of 179ºC, a boiling point of 542.8ºC at 760 mmHg, a density of 1.261g/cm3 and a flash point of 193.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 3539-42-2
Jingsj CID: J-40843-9
Molecular Formula: C₁₉H₂₀O₆
Chinese Name: 4,4'-异亚丙基二苯氧基乙酸
Molecular Weight: 344.35900 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	179ºC
Boiling Point	542.8ºC at 760 mmHg
Density	1.261g/cm3
Flash Point	193.9ºC
Exact Mass	344.12600
PSA	93.06000
LogP	2.93930
Refractive Index	1.574

Customs & Trade Information

HS Code	2918990090
Summary	2918990090. other carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 4,4'-Isopropylidenediphenoxyacetic Acid?

The CAS number of 4,4'-Isopropylidenediphenoxyacetic Acid is 3539-42-2.

What are the molecular formula and molecular weight of 4,4'-Isopropylidenediphenoxyacetic Acid?

4,4'-Isopropylidenediphenoxyacetic Acid has molecular formula C19H20O6 and molecular weight 344.35900 g/mol.

What are the upstream and downstream products of 4,4'-Isopropylidenediphenoxyacetic Acid?

For 4,4'-Isopropylidenediphenoxyacetic Acid, Upstream Products: Bisphenol A, Chloroacetic acid, Sodium chloroacetate; Downstream Products: Bisphenol A.

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

Last updated: 8/21/2026

How to cite: Jingsj. "4,4'-Isopropylidenediphenoxyacetic Acid (CAS 3539-42-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-40843-9 (accessed 2026-10-28).

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