Azulene
Title: Azulene
CAS Registry Number: 275-51-4
CAS Name: Cyclopentacycloheptene
Additional Names: bicyclo-[5.3.0]-deca-2,4,6,8,10-pentaene; bicyclo-[0.3.5]-deca-1,3,5,7,9-pentaene
Molecular Formula: C10H8
Molecular Weight: 128.17
Percent Composition: C 93.71%, H 6.29%
Literature References: Prepn from octahydronaphthalene: Plattner, Pfau, Helv. Chim. Acta 20, 224 (1937); from indan: Plattner, Magyar, ibid. 25, 581 (1942).
Properties: Intensely blue leaflets or monoclinic plates from alc. Odor of naphthalene. mp 98.5-99°. Absorption spectrum: Susz et al., Helv. Chim. Acta 20, 469 (1937); Plattner, ibid. 24, 283 (1941). Insol in water; sol in the usual organic solvents, in concd mineral acids with decompn.
Melting point: mp 98.5-99°
 
Derivative Type: Sodium sulfonate
CAS Registry Number: 51873-93-9
Trademarks: Azunol (Nippon Shinyaku); Azusalen (Ohta)
 
Therap-Cat: Sodium sulfonate as antacid.
Keywords: Antacid.

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