Tanacetin
Title: Tanacetin
CAS Registry Number: 1401-54-3
CAS Name: [3aS-(3aa,5ab,6b,9aa,9bb)]-Decahydro-6,9a-dihydroxy-5a-methyl-3,9-bis(methylene)naphtho[1,2-b]furan-2(3H)-one
Additional Names: 1b,5a-dihydroxy-6b,7aH-selina-4(15),11(13)-dien-6,12-olide
Molecular Formula: C15H20O4
Molecular Weight: 264.32
Percent Composition: C 68.16%, H 7.63%, O 24.21%
Literature References: Isoln from seed, herb, and flowers of Tanacetum vulgare L., Compositae: Homolle, J. Pharm. Chim. 7, 57 (1845); Jaretzky, Kühne, Arch. Pharm. 271, 353 (1933); Suchy, Collect. Czech. Chem. Commun. 27, 1058 (1962). Structure and absolute config: Samek et al., ibid. 38, 1971 (1973).
Properties: Crystals, mp 205°. [a]D22 +179.5° (c = 2.3 in ethanol).
Melting point: mp 205°
Optical Rotation: [a]D22 +179.5° (c = 2.3 in ethanol)

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