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Product Name: 2H-Pyran-6-carboxylicacid, 3,4-dihydro-2,2-dimethyl-4-oxo-, butyl ester
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Purity: 98.0%
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532-34-3

532-34-3 structure

Name: Butopyronoxyl
Chemical Name: butopyronoxyl
CAS Number: 532-34-3
Molecular Formula: C₁₂H₁₈O₄
Molecular Weight: 226.26900
Catalog: Chemical reagent Organic reagent Fatty ketone (including enol)
Create Date: 2018-03-01 08:00:00
Modify Date: 2026-07-07 16:10:42
Butopyronoxyl is an insect repellent that can be mainly used to repel mosquitoes[1][2].

Name	butopyronoxyl
Synonyms	ent9 Indalon butyl5,6-dihydro-6,6-dimethyl-4-oxo-4h-pyran-2-cboxylate 3,4-dihydro-2,2-dimethyl-4-oxo-2h-pyran-6-cboxylicacibutylester butyldihydro-6,6-dimethyl-4-oxopyran-2-cboxylate butyl 2,2-dimethyl-4-oxo-3H-pyran-6-carboxylate LABOTEST-BB LT00138120 INDALON Indalone@100 μg/mL in Methanol 3,4-DIHYDRO-2,2-DIMETHYL-4-OXO-2H-PYRAN-6-CBOXYLIC ACID BUTYL ESTER 6-butoxycbonyl-2,3-dihydro-2,2-dimethyl-4-pyrone butopyranoxyl n-butyl-3,4-dihydro-2,2-dimethyl-4-oxo-1,2h-pyran-6-cboxylate butyl 3,4-dihydro-2,2-dimethyl-4-oxo-2H-pyran-6-carboxylate butyl 2,2-dimethyl-4-oxo-3,4-dihydro-2H-pyran-6-carboxylate 4-keto-2,2-dimethyl-3H-pyran-6-cboxylic acid butyl ester n-butylmesityloxideoxalate Butyl mesityl oxide Butyl 3,4-Dihydro-2,2-dimethyl-4-oxo-2H-pyran-6-cboxylate 3,4-Dihydro-2,2-dimethyl-4-oxo-2H-pyran-6-cboxylic Acid Butyl Ester Indalone 4-pyrone-2-cboxylicacid-5,6-dihydro-6,6-dimethyl,butylester Butyl mesityl oxide oxalate DIHYDROPYRONE(R) BUTYL 3,4-DIHYDRO-2,2-DIMETHYL-4-OXO-2H-PYRAN-6-CBOXYLATE BUTYLMESITYL OXIDE OXALATE 5,6-Dihydro-4-oxo-6,6-dimethyl-4H-pyran-2-cboxylic acid butyl ester BUTYLMESITYL OXIDE butyl 2,2-dimethyl-3,4-dihydro-4-oxo-2H-pyran-6-carboxylate 3,4-Dihydro-2,2-dimethyl-4-oxo-2H-pyran-6-carboxylic Acid Butyl Ester n-Butylmesityloxid oxalate INDALONE n-butylesterof3,4-dihydro-2,2-dimethyl-4-oxo-2h-pyran-6-cboxylicacid bmoo Butopyronoxyl > EINECS 208-535-3 alpha,alpha-dimethyl-alpha’-cboxydihydro-gamma-pyronebutylester 2-cbo-n-butoxy-6,6-dimethyl-5,6-dihydro-1,4-pyrone ENT 9 BUTOPYRONOXYL butyl-3,4-dihydro-2,2-dimethyl-4-oxo-2H-pyran-6-carboxylate (ALPHA,ALPHA')-DIMETHYL(ALPHA')CBOBUTOXYDIHYDRO-(GAMMA)-PYRONE BUTYLMESITYL OXIDE OXALATE,M, NEAT butyl 2,2-dimethyl-4-oxo-3H-pyran-6-cboxylate BUTYL-3,4-DIHYDRO-2,2-DIMETHYL-4-OXO-1,2-H-PYRAN-[6-CBOXYLATE] INDALONE(R) 2,2-dimethyl-6-cbobutoxy-2,3-dihydro-4-pyrone BUTOPYRONOXYL, (INDALONE) 3,4-dihydro-2,2-dimethyl-4-oxo-2h-pyran-6-cboxylicacid,n-butylester dihydropyrone Dihydropyrone BMOO 3,4-dihydro-2,2-dimethyl-4-oxo-2h-pyran-6-cboxylicacid-n-butylester

Description	Butopyronoxyl is an insect repellent that can be mainly used to repel mosquitoes[1][2].
Related Catalog	Research Areas >> Others Signaling Pathways >> Others >> Others
In Vitro	Indalone does decrease the attraction of A. variegatum to the pheromone and induces repulsion of A. variegatum when presented on its own in the air stream[1].
References	[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.

Density	1.054 g/mL at 25ºC(lit.)
Boiling Point	272.1ºC at 760 mmHg
Melting Point	25°C
Molecular Formula	C₁₂H₁₈O₄
Molecular Weight	226.26900
Flash Point	112.7ºC
Exact Mass	226.12100
PSA	52.60000
LogP	1.98160
Index of Refraction	n20/D 1.477(lit.)

CHEMICAL IDENTIFICATION

RTECS NUMBER :: UP7000000

CHEMICAL NAME :: 2H-Pyran-6-carboxylic acid, 3,4-dihydro-2,2-dimethyl-4-oxo-, butyl ester

CAS REGISTRY NUMBER :: 532-34-3

BEILSTEIN REFERENCE NO. :: 0160461

LAST UPDATED :: 199701

DATA ITEMS CITED :: 9

MOLECULAR FORMULA :: C12-H18-O4

MOLECULAR WEIGHT :: 226.30

WISWESSER LINE NOTATION :: T6O DV BUTJ F1 F1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 7400 uL/kg

TOXIC EFFECTS :: Liver - change in gall bladder structure or function

REFERENCE :: JPETAB Journal of Pharmacology and Experimental Therapeutics. (Williams & Wilkins Co., 428 E. Preston St., Baltimore, MD 21202) V.1- 1909/10- Volume(issue)/page/year: 93,26,1948

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 11600 uL/kg

TOXIC EFFECTS :: Liver - change in gall bladder structure or function

REFERENCE :: JPETAB Journal of Pharmacology and Experimental Therapeutics. (Williams & Wilkins Co., 428 E. Preston St., Baltimore, MD 21202) V.1- 1909/10- Volume(issue)/page/year: 93,26,1948

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 5400 uL/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: JPETAB Journal of Pharmacology and Experimental Therapeutics. (Williams & Wilkins Co., 428 E. Preston St., Baltimore, MD 21202) V.1- 1909/10- Volume(issue)/page/year: 93,26,1948

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: >10 mL/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: JPETAB Journal of Pharmacology and Experimental Therapeutics. (Williams & Wilkins Co., 428 E. Preston St., Baltimore, MD 21202) V.1- 1909/10- Volume(issue)/page/year: 93,26,1948

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - guinea pig

DOSE/DURATION :: 3200 uL/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: JPETAB Journal of Pharmacology and Experimental Therapeutics. (Williams & Wilkins Co., 428 E. Preston St., Baltimore, MD 21202) V.1- 1909/10- Volume(issue)/page/year: 93,26,1948

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Bird - chicken

DOSE/DURATION :: 15 mL/kg

TOXIC EFFECTS :: Liver - change in gall bladder structure or function

REFERENCE :: JPETAB Journal of Pharmacology and Experimental Therapeutics. (Williams & Wilkins Co., 428 E. Preston St., Baltimore, MD 21202) V.1- 1909/10- Volume(issue)/page/year: 93,26,1948 ** OTHER MULTIPLE DOSE TOXICITY DATA **

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 180 mL/kg/13W-I

TOXIC EFFECTS :: Skin and Appendages - dermatitis, other (after systemic exposure) Related to Chronic Data - death

REFERENCE :: JPETAB Journal of Pharmacology and Experimental Therapeutics. (Williams & Wilkins Co., 428 E. Preston St., Baltimore, MD 21202) V.1- 1909/10- Volume(issue)/page/year: 93,26,1948 *** U.S. STANDARDS AND REGULATIONS *** EPA FIFRA 1988 PESTICIDE SUBJECT TO REGISTRATION OR RE-REGISTRATION FEREAC Federal Register. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) V.1- 1936- Volume(issue)/page/year: 54,7740,1989

Risk Phrases	R38
Safety Phrases	37/39
WGK Germany	3
RTECS	UP7000000
HS Code	2932999016

2050-60-4

532-34-3

Literature: US2138540 , ;

Precursor 1
2050-60-4
DownStream 1
774-01-6

HS Code	2932999016
Summary	2932999016 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%

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