Dypnone
Title: Dypnone
CAS Registry Number: 495-45-4
CAS Name: 1,3-Diphenyl-2-buten-1-one
Additional Names: b-methylchalcone
Molecular Formula: C16H14O
Molecular Weight: 222.28
Percent Composition: C 86.45%, H 6.35%, O 7.20%
Literature References: Prepd by self-condensation of acetophenone in the presence of aluminum tert-butoxide: Adkins, Cox, J. Am. Chem. Soc. 60, 1151 (1938); W. Wayne, H. Adkins, Org. Synth. coll. vol. III, 367 (1955). Use as sunscreen: Ind. Eng. Chem. 46, 15A (July 1954). Toxicity study: H. F. Smyth et al., J. Ind. Hyg. Toxicol. 31, 60 (1949).
Properties: Liquid. d415 1.1080. nD20 1.6343. bp760 340-345° (partial decompn); bp22 225°; bp1.0 150-155°. Insol in water. Sol in alcohol, ether. LD50 orally in rats: 3.6 g/kg (Smyth).
Boiling point: bp760 340-345° (partial decompn); bp22 225°; bp1.0 150-155°
Index of refraction: nD20 1.6343
Density: d415 1.1080
Toxicity data: LD50 orally in rats: 3.6 g/kg (Smyth)
Use: Sunscreen.

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