[73] Assignee: Colgate-Palmolive Company, New York, NY [22] Filed: Mar. 15, 1971 [21] Appl. No.: 124510 [52] US CI 8/18, 8/26, 8/41 R, 8/41 B, 8/41 C, ...

CO — n-decyl NH— • — n-nonyl — 3,5.5- trimethyl- hexyi — n-decyl n-decyl ... NI \ N.CO— CI CI Ms"' Ms Ms Ms CI 5K -CH.CO. NH n-decv\ -CO N ^^yN CO— CI — CH.

'the methylene group is attached to the pyridine nitrogen atom, and the NH group is attached to RMp(°C.) 162-165 190-192 265-267 ( decomposition ) 61-63 ...

A bluish-red dyeing is also obtained if, instead of the above dyestuff, a dyestuff of the formula: -S02 NH— CO— NH- O NH— CO— NH- II I AAA •so2 CH3 a full ...

The product has the following formula ci I CO-NH- I ■o- ■CI 30 CO-NH- V NH— OO -OCHj The resulting pigment has good resistance to solvents.

Example I 5 g. of the cyclic compound OzHiaOaNa corresponding to the structural formula HN( GHz— CHj- -CO-NH \ CHj-CHz- -CO— NH CHs 25 a novel amino-acid ...

NH-CO-NH triethanolamine salt Using sodium carbonate in place of triethanolamine , 30 thus forming the sodium salt of the dye. When the reaction is complete ...

... C(NH)NH-alkyl-het- erocycloalkyl; or C(NH)NHCO-alkyl, C(NH)NHCO- cycloalkyl, C(NH)NHCO-aryl, C(NH)NHCO-alkyl- cycloalkyl, C(NH)NHCO alkyl-aryl, ...