Methothrin

Also known as: [4-(methoxymethyl)phenyl]methyl 2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropane-1-carboxylate, 2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropanecarboxylic acid 4-(methoxymethyl)benzyl ester, 4-(methoxymethyl)benzyl chrysanthemate, 4-(methoxymethyl)benzyl (1RS)-cis,trans-2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropanecarboxylate, 2,2-dimethyl-3-(2-methylpropenyl)-cyclopropanecarboxylic acid p-(methoxymethyl)benzyl ester, (1RS,3SR)-2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropanecarboxylate, Methothryn, MB Pyrethroid

Methothrin (CAS 34388-29-9) is a compound in the Esters category listed in the Jingsj chemical database. It has the molecular formula C19H26O3 and a molecular weight of 302.40800 g/mol. Key properties include a boiling point of 369.639ºC at 760 mmHg, a density of 1.075 g/cm3 and a flash point of 154.79ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 34388-29-9
Jingsj CID: J-14353-6
Molecular Formula: C₁₉H₂₆O₃
Molecular Weight: 302.40800 g/mol
Category: Esters
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	369.639ºC at 760 mmHg
Density	1.075 g/cm3
Flash Point	154.79ºC
Exact Mass	302.18800
PSA	35.53000
LogP	4.11460
Refractive Index	1.501

Frequently Asked Questions

What is the CAS number of Methothrin?

The CAS number of Methothrin is 34388-29-9.

What are the molecular formula and molecular weight of Methothrin?

Methothrin has molecular formula C19H26O3 and molecular weight 302.40800 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. "Methothrin (CAS 34388-29-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-14353-6 (accessed 2026-11-06).

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