Hermcol®ʻO ka GH melemele he ikaika, ʻālohilohi, ʻōmaʻomaʻo ʻōmaʻomaʻo diarylide puaʻa melemele 12. He mea hoʻohuihui a me kahi hui azo.He puaʻa melemele i hoʻohana nui ʻia.Hoʻokaʻawale ʻia ʻo ia he puaʻa diarylide, i loaʻa mai ka 3,3′-dichlorobenzidine.Pili loa ia i ka Pigment Yellow 13, kahi i pani ʻia ai nā pūʻulu phenyl ʻelua e 2,4-xylyl.He aniani kiʻekiʻe me ka ʻōlinolino maikaʻi.Loaʻa iā ia kahi kahe kiʻekiʻe, kiʻekiʻe tinting ikaika, haʻahaʻa viscosity.ʻO kāna hoʻohana nui ʻia ka inika offset a me ka inika wai.