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Butopyronoxyl

Also known as: Butyl 3,4-dihydro-2,2-dimethyl-4-oxo-2H-pyran-6-carboxylate, Butyl mesityl oxide oxalate, Indalone, Butyl mesityl oxide, Dihydropyrone, ENT 9, BMOO, n-Butylmesityloxid oxalate, 3,4-Dihydro-2,2-dimethyl-4-oxo-2H-pyran-6-carboxylic acid butyl ester

Butopyronoxyl (CAS 532-34-3) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C12H18O4 and a molecular weight of 226.26900 g/mol. Key properties include a melting point of 25°C, a boiling point of 272.1ºC at 760 mmHg, a density of 1.054 g/mL at 25ºC(lit.) and a flash point of 112.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
532-34-3
Jingsj CID
J-42859-1
Molecular Formula
C12H18O4
Molecular Weight
226.26900 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Melting Point25°C
Boiling Point272.1ºC at 760 mmHg
Density1.054 g/mL at 25ºC(lit.)
Flash Point112.7ºC
Exact Mass226.12100
PSA52.60000
LogP1.98160
Refractive Indexn20/D 1.477(lit.)

Activity & Biological Data

Additional Information[1]. C McMahon, et al. In vitro assays for repellents and deterrents for ticks: differing effects of products when tested with attractant or arrestment stimuli. Med Vet Entomol. 2003 Dec;17(4):370-8. [2]. L C Rutledge, et al. Evaluation of the laboratory mouse model for screening topical mosquito repellents. J Am Mosq Control Assoc. 1994 Dec;10(4):565-71.

Customs & Trade Information

HS Code2932999016
Summary2932999016 butyl 2,2-dimethyl-4-oxo-3,4-dihydro-2h-pyran-6-carboxylate。supervision conditions:s(import or export registration certificate for pesticides)。VAT:17.0%。tax rebate rate:13.0%。MFN tarrif:6.5%。general tariff:20.0%

Frequently Asked Questions

What is the CAS number of Butopyronoxyl?

The CAS number of Butopyronoxyl is 532-34-3.

What are the molecular formula and molecular weight of Butopyronoxyl?

Butopyronoxyl has molecular formula C12H18O4 and molecular weight 226.26900 g/mol.

What are the upstream and downstream products of Butopyronoxyl?

For Butopyronoxyl, Upstream Products: Dibutyl oxalate.

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

Last updated:

How to cite: Jingsj. "Butopyronoxyl (CAS 532-34-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-42859-1 (accessed 2026-11-09).

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