Levels of the high molecular weight smoke pigment previously shown to contain chlorogenic acid, amino acids and iron were determined in condensates from blended and unblended cigarettes. Also, approximations were made of the molecular weight distributions of the subfractions of the pigments in the condensates. Burley pigment was grossly different from the other types in that the molecular weight of the major fraction is much lower and a relatively large amount becomes insoluble in alkaline solution of pH 12.0 after purification. Turkish and Maryland condensates contained higher weight levels of pigment per cigarette and burley contained the lowest Ievel.

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