Tunichrome B-1 CAS Registry Number: 97689-87-7
CAS Name: (aE)-3,5-Dihydroxy-L-tyrosyl-a,b-didehydro-3,5-dihydroxy-N-[(1Z)-2-(3,4,5-trihydroxyphenyl)ethenyl]tyrosinamide
Additional Names: TB-1
Percent Composition: C 56.22%, H 4.54%, N 7.56%, O 31.68%
📌 参考资料/链接:
Literature References: Major component of a group of polyphenolic yellow blood pigments isolated from the sea squirt (tunicate) Ascidia nigra (Linnaeus). The tunichromes are strong biological reducing agents involved in the selective accumulation of vanadium by A. nigra. Isoln of crude tunichrome mixture from the blood cells of A. nigra, action in converting vanadium(V) to vanadium(III): I. G. Macara et al., Biochem. J. 181, 457 (1979). Isoln of tunichrome B-1 by HPLC under anaerobic conditions, characterization and structure determn by mass spec, nmr: R. C. Bruening et al., J. Am. Chem. Soc. 107, 5298 (1985). Brief account of the role of tunichromes in studies into the biochemical nature of vanadium and other trace metals: R. J. Seltzer, Chem. Eng. News 63, 67 (Sept. 16, 1985). Review: R. C. Bruening et al., J. Nat. Prod. 49, 193 (1986).
📄 详细内容
Properties: Yellow solid, sol in methanol. uv max (methanol): 210, 340 nm (e 68000, 19600).
Absorption maximum: uv max (methanol): 210, 340 nm (e 68000, 19600)
产品链接: 97689-87-7››