Alberti, Guido published the artcileCationic dyes for acrylic fibers. IV. Cationic dyes from 6-methyl-2-(p-aminophenyl)benzothiazole and angular 2-aminonaphthothiazoles, Formula: C14H12N2S, the publication is Chimica e l’Industria (Milan, Italy) (1974), 56(10), 684-6, database is CAplus.
Leacril 16 acrylic fiber was dyed with a series of quaternized azo dyes based on 6-methyl-2-(p-aminophenyl)benzothiazole [92-36-4] and 2-aminonaphthothiazoles (I,II,III, R = H, Me; R1 = OH, CN; X = iodine, MeSO4). The greatest affinity was observed for dyes containing CH2CH2CN groups and based on naphthothiazoles. The rate of dyeing was greatest for dyes of type I. In aqueous solution the quaternized dyes had λ maximum 460-607 nm compared with 434-532 nm for the unquaternized compounds
Chimica e l’Industria (Milan, Italy) published new progress about 92-36-4. 92-36-4 belongs to thiazole, auxiliary class Organic Pigment, name is 2-(4-Aminophenyl)-6-methylbenzothiazole, and the molecular formula is C14H12N2S, Formula: C14H12N2S.
Referemce:
https://pubchem.ncbi.nlm.nih.gov/compound/thiazole,
Thiazole | chemical compound | Britannica