Fenpyroximate

Also known as: Benzoic acid, 4-[[[[(1,3-dimethyl-5-phenoxy-1H-pyrazol-4-yl)methylene]amino]oxy]methyl]-, 1,1-dimethylethyl ester, tert-Butyl (E)-4-(((((1,3-dimethyl-5-phenoxy-1H-pyrazol-4-yl)methylene)amino)oxy)methyl)benzoate, KIRON, DANITORON, DANITRON, PAMANRIN, ORTUS

Fenpyroximate (CAS 111812-58-9) is a compound in the Esters category listed in the Jingsj chemical database. It has the molecular formula C24H27N3O4 and a molecular weight of 421.489 g/mol. Key properties include a melting point of 99-102ºC, a boiling point of 546.2±60.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 284.1±32.9 °C. It is classified under GHS with signal word Warning and hazard statements H332 — Harmful if inhaled and H400 — Very toxic to aquatic life. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 111812-58-9
Jingsj CID: J-1956427-4
Molecular Formula: C₂₄H₂₇N₃O₄
Molecular Weight: 421.489 g/mol
Category: Esters
Last updated: 8/21/2026

Request MSDS / TDS

No offers for this compound yet.

Request a quote

Physicochemical Properties

Melting Point	99-102ºC
Boiling Point	546.2±60.0 °C at 760 mmHg
Density	1.1±0.1 g/cm3
Flash Point	284.1±32.9 °C
Exact Mass	421.200165
PSA	74.94000
LogP	6.44
Vapor Pressure	0.0±1.5 mmHg at 25°C
Refractive Index	1.561
Storage Conditions	0-6°C

GHS Safety & Compliance

Irritant / Environmental HazardSignal word: Warning

H332 — Harmful if inhaled
H400 — Very toxic to aquatic life

Activity & Biological Data

Additional Information	[1]. Somayyeh Ghasemzadeh, et al. Demographic analysis of fenpyroximate and thiacloprid exposed predatory mite Amblyseius swirskii (Acari: Phytoseiidae). PLoS One. 2018 Nov 15;13(11):e0206030. [2]. Yusuke Shiraishi, et al. Fenpyroximate binds to the interface between PSST and 49 kDa subunits in mitochondrial NADH-ubiquinone oxidoreductase. Biochemistry. 2012 Mar 6;51(9):1953-63.

Customs & Trade Information

HS Code	2942000000

Frequently Asked Questions

What is the CAS number of Fenpyroximate?

The CAS number of Fenpyroximate is 111812-58-9.

What are the molecular formula and molecular weight of Fenpyroximate?

Fenpyroximate has molecular formula C24H27N3O4 and molecular weight 421.489 g/mol.

Is Fenpyroximate hazardous?

Fenpyroximate has GHS signal word Warning and hazard statements H332 — Harmful if inhaled; H400 — Very toxic to aquatic life.

What are the upstream and downstream products of Fenpyroximate?

For Fenpyroximate, Upstream Products: tert-Butyl 4-(bromomethyl)benzoate, 1,3-Dimethyl-5-pyrazolone, 5-Chloro-1,3-dimethyl-1H-pyrazole-4-carboxaldehyde.

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. "Fenpyroximate (CAS 111812-58-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1956427-4 (accessed 2026-11-06).

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