Maclurin
Title: Maclurin
CAS Registry Number: 519-34-6
CAS Name: (3,4-Dihydroxyphenyl)(2,4,6-trihydroxyphenyl)methanone
Additional Names: 2,3¢,4,4¢,6-pentahydroxybenzophenone; morintannic acid; moritannic acid; laguncurin; kino-yellow; C.I. Natural Yellow 11; C.I. 75240
Molecular Formula: C13H10O6
Molecular Weight: 262.21
Percent Composition: C 59.55%, H 3.84%, O 36.61%
Literature References: From wood of Chlorophora tinctoria (L.) Gaud. (Morus tinctoria L., Maclura tinctoria (L.) D. Don), Moraceae (old fustic): Haley, Bassin, J. Am. Pharm. Assoc. 40, 111 (1951); Laidlow, Smith, Chem. Ind. (London) 1959, 1604; from Morus alba Linn., Moraceae: Spada et al., Gazz. Chim. Ital. 86, 46 (1956). Identity with laguncurin and kino-yellow: Nierenstein, Q. J. Pharm. Pharmacol. 16, 11 (1943). See also Colour Index vol. 4 (3rd ed., 1971) p 4627.
Properties: Yellow needles from ethanol, mp 222-222.5°. Sol in 190 parts water; freely sol in alcohol or ether.
Melting point: mp 222-222.5°
Use: Dyeing fabrics.

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