Substance profile

Pinoxaden

Pinoxaden is a fine white powder and is odorless.

CAS 243973-20-8 C23H32N2O4 400.5 g/mol Warning

01 · Identification

What Pinoxaden is

Pinoxaden is a fine white powder and is odorless. Its molecular formula is C23H32N2O4 and its molecular weight is 400.5 g/mol. It melts at 121 °C.

Under the GHS it carries the signal word Warning.

CAS number243973-20-8

Index number607-726-00-2

Molecular formulaC23H32N2O4

Molecular weight400.5 g/mol

Other names for Pinoxaden

pinoxaden (ISO)
8-(2,6-diethyl-4-methylphenyl)-7-oxo-1,2,4,5-tetrahydro-7H-pyrazolo[1,2-d][1,4,5]oxadiazepin-9-yl 2,2-dimethylpropanoate

02 · GHS classification

Hazards and label elements

Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.

Health hazard

Exclamation mark

Environment

Signal wordWarning

Hazard statements assigned to Pinoxaden
Code	Hazard statement
H361d	Suspected of damaging the unborn child.
H332	Harmful if inhaled.
H302	Harmful if swallowed.
H335	May cause respiratory irritation.
H319	Causes serious eye irritation.
H317	May cause an allergic skin reaction.
H400	Very toxic to aquatic life.
H412	Harmful to aquatic life with long lasting effects.

Precautionary statements: P260, P261, P264, P270, P271, P272, P273, P280, P301, P304, P305, P312, P313, P330, P333, P337, P338, P391, P501

03 · Physical and chemical properties

Pinoxaden properties

Every value is shown with the conditions it was measured under and the source it came from. Where sources disagree, all values are listed rather than one being picked — the difference is usually a different form of the substance, not an error.

Property	Value	Conditions	Source
Melting point	121.05 °C (249.9 °F)	range, midpoint shown	HSDB
Density	1.16 g/cm³	at 21 °C	HSDB
Solubility	Solubilities (g/L): acetone 250; dichloromethane >500; ethyl acetate 130; hexane 1.0; methanol 260; octanol 140; toluene 130		HSDB
	In water, 220 mg/L at 25 °C	at 25 °C	HSDB
Vapor pressure	1.5001 mmHg	at 20 °C	HSDB

Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.

04 · Handling and storage

Storing and handling Pinoxaden

Storage conditions

Store in a cool, dry place. Do not store near seeds, fertilizers, or foodstuffs. /Axial Herbicide/

Source: Hazardous Substances Data Bank (HSDB)

Planning storage for a mix of chemicals? Check Pinoxaden in the storage compatibility matrix →

Work with Pinoxaden

ATE mixture calculator Calculate acute toxicity estimate for a mixture containing this substance. Storage compatibility What this substance must not be stored next to. Label constructor Build a compliant GHS label with these pictograms and statements.