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Cyphenothrin

Also known as: D-Cyphenothrin, D-trans-Cyphenothrin, Cyano(3-phenoxyphenyl)methyl 2,2-dimethyl-3-(2-methylprop-1-en-1-yl)cyclopropanecarboxylate, α-Cyano-3-phenoxybenzyl 2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropanecarboxylate, Cyphenothrin (mixture of cis and trans isomers), Gokilaht, S2703, SP2703

Cyphenothrin (CAS 39515-40-7) is a compound in the Esters category listed in the Jingsj chemical database. It has the molecular formula C24H25NO3 and a molecular weight of 375.460 g/mol. Key properties include a melting point of 25ºC, a boiling point of 481.6±45.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 209.4±18.9 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed and H410 — Very toxic to aquatic life with long lasting effects. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
39515-40-7
Jingsj CID
J-1974113-6
Molecular Formula
C24H25NO3
Molecular Weight
375.460 g/mol
Category
Esters
Last updated
8/21/2026

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Physicochemical Properties

Melting Point25ºC
Boiling Point481.6±45.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point209.4±18.9 °C
Exact Mass375.183441
PSA59.32000
LogP6.59
Vapor Pressure0.0±1.2 mmHg at 25°C
Refractive Index1.594

GHS Safety & Compliance

Irritant / Environmental HazardSignal word: Warning
  • H302 — Harmful if swallowed
  • H410 — Very toxic to aquatic life with long lasting effects

Activity & Biological Data

Additional Information[1]. Chrysovalantou Karanika, et al. Insecticidal efficacy of a binary combination of cyphenothrin and prallethrin, applied as surface treatment against four major stored-product insects. Journal of Stored Products Research. Volume 80, January 2019, Pages 41-49

Frequently Asked Questions

What is the CAS number of Cyphenothrin?

The CAS number of Cyphenothrin is 39515-40-7.

What are the molecular formula and molecular weight of Cyphenothrin?

Cyphenothrin has molecular formula C24H25NO3 and molecular weight 375.460 g/mol.

Is Cyphenothrin hazardous?

Cyphenothrin has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H410 — Very toxic to aquatic life with long lasting effects.

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

Last updated:

How to cite: Jingsj. "Cyphenothrin (CAS 39515-40-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1974113-6 (accessed 2026-11-06).

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