4,4',4''-(1-methyl-1-propanyl-3-ylidene)tris[2-(1,1-dimethylethyl)-5-methylphenol]

Also known as: Antioxidant CA, 1,1,3-Tris(2-methyl-4-hydroxy-5-tert-butylphenyl)butane, 1,1,3-Tri(4-hydroxy-2-methyl-5-tert-butylphenyl)butane, 1,1,3-Tris-(2-tert-butyl-4-hydroxy-5-methylphenyl)-butane, TPMB, Topanol CA, Lowinox CA 22, Mixxim AO 30, OS 930, Seenox 336, Acetostab CA, MFCD00072238, EINECS 217-420-7

4,4',4''-(1-methyl-1-propanyl-3-ylidene)tris[2-(1,1-dimethylethyl)-5-methylphenol] (CAS 1843-03-4) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C37H52O3 and a molecular weight of 544.807 g/mol. Key properties include a melting point of 183-190 °C(lit.), a boiling point of 609.4±50.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 233.4±24.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 1843-03-4
Jingsj CID: J-47565-7
Molecular Formula: C₃₇H₅₂O₃
Molecular Weight: 544.807 g/mol
Category: Aromatic Hydrocarbons
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	183-190 °C(lit.)
Boiling Point	609.4±50.0 °C at 760 mmHg
Density	1.0±0.1 g/cm3
Flash Point	233.4±24.7 °C
Exact Mass	544.391663
PSA	60.69000
LogP	10.97
Vapor Pressure	0.0±1.8 mmHg at 25°C
Refractive Index	1.558

Customs & Trade Information

HS Code	2907199090
Summary	2907199090 other monophenols VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 4,4',4''-(1-methyl-1-propanyl-3-ylidene)tris[2-(1,1-dimethylethyl)-5-methylphenol]?

The CAS number of 4,4',4''-(1-methyl-1-propanyl-3-ylidene)tris[2-(1,1-dimethylethyl)-5-methylphenol] is 1843-03-4.

What are the molecular formula and molecular weight of 4,4',4''-(1-methyl-1-propanyl-3-ylidene)tris[2-(1,1-dimethylethyl)-5-methylphenol]?

4,4',4''-(1-methyl-1-propanyl-3-ylidene)tris[2-(1,1-dimethylethyl)-5-methylphenol] has molecular formula C37H52O3 and molecular weight 544.807 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "4,4',4''-(1-methyl-1-propanyl-3-ylidene)tris[2-(1,1-dimethylethyl)-5-methylphenol] (CAS 1843-03-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-47565-7 (accessed 2026-11-07).

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