Detail of "475-25-2"

Reference

Hair dye compositions containing vegetable extracts

Hair dye compositions containing vegetable extracts. Melin, Christian (Muller, Alban, International S.a r.l., Fr.). Fr. Demande FR 2543434 A1 5 Oct 1984, 16 pp. (French). (France). CODEN: FRXXBL. CLASS: IC: A61K007-13. APPLICATION: FR 83-5414 1 Apr 1983. DOCUMENT TYPE: Patent CA Section: 62 (Essential Oils and Cosmetics) Semipermanent direct and reversible hair dye compns. contain a mixt. of at least 1 coloring ext. and/or dyes of vegetable origin which could be in the form of metal complexes, and liq. penetration agents. Thus, an ext. of log wood contg. hemotoxylin [517-28-2]/hematin [475-25-2] as Co2+ complexes 6.5, BuOH [71-36-3] 1.5 and Cellosolve 2.0 mL, preservative 0.1, natural vegetable flavor 0.05 and an aq. gel with 2% polyglucose to 100 mL was mixed to give a hair prepn. The compn. applied to natural white or blond hair colors it black after rinsing with 2.5% aq. Na2CO3 soln.

On the structure of haematein

On the structure of haematein. Bassoli, Angela; Borgonovo, Gigliola; Merlini, Lucio; Scaglioni, Leonardo (Dip. Sci. Mol. Agroalimentari, Univ. Milano, Milan I-20133, Italy). Gazzetta Chimica Italiana, 126(11), 761-763 (English) 1996 Societa Chimica Italiana. CODEN: GCITA9.In this article, certain chemicals are used. Some of their cas registry numbers are 184294-58-4 and 475-25-2 ISSN: 0016-5603. DOCUMENT TYPE: Journal CA Section: 27 (Heterocyclic Compounds (One Hetero Atom)) The 13C NMR spectrum of haematein confirms that the structure of the compd. given by V. M. Micovic and R. Robinson (1937) represents the prevailing tautomeric structure. Haematein undergoes nucleophilic addn. of water, MeOH, and benzenethiol to the quinone-methide moiety. .