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CAS No 532-34-3 , butyl 2,2-dimethyl-4-oxo-3H-pyran-6-carboxylate

  • Name: butyl 2,2-dimethyl-4-oxo-3H-pyran-6-carboxylate
  • Synonyms: 532-34-3; INDALONE; ENT 9; BMOO; Indalon;butyl 2,2-dimethyl-4-oxo-3H-pyran-6-carboxylate; Butyl mesityl oxide; Butyl mesityl oxide oxalate; n-Butylmesityloxid oxalate;Dihydropyrone;
  • CAS Registry Number:
  • Refractive index: n20/D 1.477(lit.)
  • Safety Statements: 37/39
  • EINECS: 208-535-3
  • Molecular Weight: 226.26892
  • InchiKey: OKIJSNGRQAOIGZ-UHFFFAOYSA-N
  • InChI: InChI=1S/C12H18O4/c1-4-5-6-15-11(14)10-7-9(13)8-12(2,3)16-10/h7H,4-6,
    8H2,1-3H3
  • Risk Statements: 38
  • Molecular Formula: C12H18O4
  • Molecular Structure:CAS No:532-34-3 butyl 2,2-dimethyl-4-oxo-3H-pyran-6-carboxylate

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532-34-3 BUTOPYRONOXYL; 95%

  • Germany ABCR GmbH & Co KG [Manufacturer]
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532-34-3 Butopyronoxyl

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532-34-3 2H-Pyran-6-carboxylicacid, 3,4-dihydro-2,2-dimethyl-4-oxo-, butyl ester

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532-34-3 Butylmesityl oxide oxalate

  • Butylmesityl oxide oxalate
  • Germany CHEMOS GmbH [Manufacturer]
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532-34-3 INDALON

  • INDALON
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532-34-3 BUTOPYRONOXYL

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References of butyl 2,2-dimethyl-4-oxo-3H-pyran-6-carboxylate
Title: Butopyronoxyl
CAS Registry Number: 532-34-3
CAS Name: 3,4-Dihydro-2,2-dimethyl-4-oxo-2H-pyran-6-carboxylic acid butyl ester
Synonyms: butyl 3,4-dihydro-2,2-dimethyl-4-oxo-2H-pyran-6-carboxylate; butyl mesityl oxide oxalate; a,a-dimethyl-a￠-carboxydihydro-g-pyrone butyl ester
Trademarks: Indalone
Molecular Formula: C12H18O4
Molecular Weight: 226.27
Percent Composition: C 63.70%, H 8.02%, O 28.28%
Literature References: Prepd by condensation of mesityl oxide with dibutyl oxalate in the presence of sodium or sodium butoxide: Ford, US 2138540 (1938 to Kilgore Dev.). Exists as the dihydropyrone in equilibrium with the open chain enol form: Hall et al., J. Am. Chem. Soc. 67, 1224 (1945). Toxicity study: J. H. Draize et al., J. Pharmacol. Exp. Ther. 93, 26 (1948).
Properties: Yellow to pale reddish-brown liquid. Aromatic odor. d2525 1.052-1.060. bp760 256-270°. nD25 1.4745-1.4755. Practically insol in water. Misc with alcohol, chloroform, ether, glacial acetic acid. LD50 in mice, rats (ml/kg): 11.6, 7.4 orally (Draize).
Boiling point: bp760 256-270°
Index of refraction: nD25 1.4745-1.4755
Density: d2525 1.052-1.060
Toxicity data: LD50 in mice, rats (ml/kg): 11.6, 7.4 orally (Draize)
CAUTION: Direct contact may be mildly irritating to skin on repeated application. See: Clinical Toxicology of Commercial Products, R. E. Gosselin et al., Eds. (Williams & Wilkins, Baltimore, 5th ed., 1984) Section II, p 345.
Use: Insect repellent.
 
 
Status: This monograph has been retired and is no longer subject to revision or update.