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CAS No 126-15-8 , 4,5a,6,9,9a,9b-hexahydro-1H-dibenzofuran-4a-carbaldehyde

  • Name: 4,5a,6,9,9a,9b-hexahydro-1H-dibenzofuran-4a-carbaldehyde
  • Synonyms: Dibutylene tetrafurfural;Mgk repellent 11; MGK Repellent II; MGK repellent R-11; R 11 (insect repellent); Phillips r-11; MGK 11; Butadien-furfural copolymer;4,5a,6,9,9a,9b-hexahydro-1H-dibenzofuran-4a-carbaldehyde;
  • CAS Registry Number:
  • Melting Point: -80 DEG C
  • Flash Point: 136.2°C
  • Boiling Point: 307°Cat760mmHg
  • Density: 1.19g/cm3
  • Refractive index: n20/D 1.520-1.530
  • Safety Statements: Moderately toxic by ingestion. An insect repellant. When heated to decomposition it emits acrid smoke and fumes. See also ALDEHYDES.
  • Flash Point: 136.2°C
  • EINECS: 204-773-7
  • Molecular Weight: 204.26494
  • InchiKey: XNYGOEGATLFFOX-UHFFFAOYSA-N
  • InChI: InChI=1S/C13H16O2/c14-9-13-8-4-3-6-11(13)10-5-1-2-7-12(10)15-13/h1-4,
    9-12H,5-8H2
  • Molecular Formula: C13H16O2
  • Molecular Structure:CAS No:126-15-8 4,5a,6,9,9a,9b-hexahydro-1H-dibenzofuran-4a-carbaldehyde

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References of 4,5a,6,9,9a,9b-hexahydro-1H-dibenzofuran-4a-carbaldehyde
Title: R-11
CAS Registry Number: 126-15-8
CAS Name: 1,5a,6,9,9a,9b-Hexahydro-4a(4H)-dibenzofurancarboxaldehyde
Synonyms: 2,3,4,5-bis(2-butenylene)tetrahydrofurfural
Manufacturers' Codes: MGK-11
Trademarks: MGK Repellent 11 (McLaughlin)
Molecular Formula: C13H16O2
Molecular Weight: 204.26
Percent Composition: C 76.44%, H 7.90%, O 15.67%
Literature References: Prepd by heating furfuraldehyde with butadiene and water under pressure: Hillyer, Nicewander, US 2683151 (1954 to Phillips Petroleum). Clinical efficacy vs sand flies: F. P. Fossati, M. Maroli, Trans. R. Soc. Trop. Med. Hyg. 80, 771 (1986).
Properties: Liquid, bp 307°. d420 1.10. mp -80°. nD20 1.5254. Practically insol in water.
Melting point: mp -80°
Boiling point: bp 307°
Index of refraction: nD20 1.5254
Density: d420 1.10
 
Derivative Type: Oxime
Properties: mp 97.2°.
Melting point: mp 97.2°
 
Derivative Type: Dinitrophenylhydrazone
Properties: mp 152.8°.
Melting point: mp 152.8°
 
Use: Insect repellent.