butopyronoxyl

Description

butopyronoxyl · CAS 532-34-3 · C12H18O4. UNII 4I5PG5VZ0V. Boiling Point: 256-270 °C @ 760 mm Hg; Density: 1.052-1.060 @ 25 °C/25 °C.

Identification

CAS Registry Number	532-34-3
PubChem CID	10760
Molecular formula	C12H18O4
IUPAC name	butyl 2,2-dimethyl-4-oxo-3H-pyran-6-carboxylate
UNII (FDA)	4I5PG5VZ0V

Computed Descriptors

Molecular Weight	226.27
XLogP3	1.9
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	4
Rotatable Bond Count	5
Exact Mass	226.12050905
Monoisotopic Mass	226.12050905
Topological Polar Surface Area	52.6
Heavy Atom Count	16
Formal Charge	0

Physical & Chemical Properties

Boiling Point	256-270 °C @ 760 mm Hg
Density	1.052-1.060 @ 25 °C/25 °C

Physical description & handling notes

• Yellow to pale reddish-brown liquid with an aromatic odor; Affected slowly by light; [Hawley]
• Yellow to pale reddish-brown liquid
• Aromatic odor
• Practically insol in water; miscible with alcohol, chloroform, ether, glacial acetic acid
• SOL IN BENZENE
• PRACTICALLY INSOL IN GLYCEROL; SLIGHTLY SOL IN ETHYLENE GLYCOL, REFINED PETROLEUM OILS

GHS Hazard Classification

Reported hazard statements	H315 (100%), H319 (100%), H335 (100%)

Documented Uses

• Used as insect repellent for application to human skin to repel ticks, mosquitoes, gnats, and stable flies; No longer registered with the EPA for use in the US, cancelled status; [HSDB]
• ... insect repellents /indalone/ are intended for application to human skin ... /SRP: former use/
• ... /AMONG/ BETTER REPELLENTS FOR TICKS ... /SRP: FORMER USE/
• For more Uses (Complete) data for INDALONE (6 total), please visit the HSDB record page.
• Prepared by condensation of mesityl oxide with dibutyl oxalate in the presence of sodium ethoxide.
• 2H-Pyran-6-carboxylic acid, 3,4-dihydro-2,2-dimethyl-4-oxo-, butyl ester: INACTIVE

Synonyms

Butopyronoxyl; 532-34-3; INDALONE; BMOO; Butyl mesityl oxide oxalate; ENT 9; Butyl mesityl oxide; Butylmesityl oxide oxalate; n-Butylmesityloxid oxalate; n-Butyl mesityl oxide oxalate; Butyl 3,4-dihydro-2,2-dimethyl-4-oxo-2H-pyran-6-carboxylate; 4I5PG5VZ0V; NSC-404420; 2-Carbo-N-butoxy-6,6-dimethyl-5,6-dihydro-1,4-pyrone; Butyl-3,4-dihydro-2,2-dimethyl-4-oxo-2H-pyran-6-carboxylate; Butyl dihydro-6,6-dimethyl-4-oxopyran-2-carboxylate

Frequently Asked Questions

What are the CAS number and molecular formula of butopyronoxyl?

CAS 532-34-3; molecular formula C12H18O4; molecular weight — g/mol.

What other names is butopyronoxyl known by?

Butopyronoxyl, 532-34-3, INDALONE, BMOO, Butyl mesityl oxide oxalate, ENT 9.

Is butopyronoxyl classified as hazardous?

Hazard statements reported: H315, H319, H335.

What are the key physical properties of butopyronoxyl?

Boiling Point: 256-270 °C @ 760 mm Hg; Density: 1.052-1.060 @ 25 °C/25 °C.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.