2- and 5-Aminoalkylamino anthraquinone dyes useful as basic dyes in coloring hair
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United States of America Patent
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Oct 7, 1980
Issued Date -
N/A
app pub date -
Feb 25, 1977
filing date -
Jan 10, 1966
priority date (Note) -
Expired
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Abstract
A compound of the formula A-NR--(CH.sub.2).sub.n --NHR' wherein R and R' are hydrogen, n is a whole number between 2 and 6 inclusive and A is selected from (1) anthraquinonyl per se wherein NR-(CH.sub.2).sub.n --NHR' is in position 2 or (2) anthraquinonyl of the formula ##STR1## wherein R.sub.1 and R.sub.2 are selected from hydrogen and lower alkyl, and the NR--(CH.sub.2).sub.n --NHR' chain is in position 5. The compound is useful as a basic dye in coloring the hair.
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