Phenicin
Title: Phenicin
CAS Registry Number: 128-68-7
CAS Name: 2,2¢-Dihydroxy-4,4¢-dimethyl[bi-1,4-cyclohexadien-1-yl]-3,3¢,6,6¢-tetrone
Additional Names: 3,3¢-dihydroxy-5,5¢-dimethyl-2,2¢-bi-p-benzoquinone; phoenicin
Molecular Formula: C14H10O6
Molecular Weight: 274.23
Percent Composition: C 61.32%, H 3.68%, O 35.01%
Literature References: Fungal pigment produced by Penicillium phoeniceum and P. rubrum: Friedheim, Helv. Chim. Acta 21, 1464 (1938); Charollais et al., Arch. Sci. 16, 474 (1963). Synthesis: Posternak et al., Helv. Chim. Acta 26, 2031 (1943); Musso, Beecken, Ber. 92, 1416 (1959); J. Kalamar et al., Helv. Chim. Acta 57, 2368 (1974). Biosynthesis: E. Steiner et al., ibid. 2377.
Properties: Yellowish-brown crystals from alc, mp 230-231°. uv max (chloroform): 268, 406 nm (log e 4.52, 3.36). Sparingly sol in water; freely sol in chloroform, acetic acid, hot alcohol. Very acidic solns are yellow, turning red at pH 1.6-3.6 and violet at pH 4.9-6.
Melting point: mp 230-231°
Absorption maximum: uv max (chloroform): 268, 406 nm (log e 4.52, 3.36)

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