post date: dec 26,2021 expiry date: jun 24,2022 detailed description: cas no. :97404-02-9 2-[(4-aminophenyl)azo]-1,3-dimethyl-1h-imidazolium chloridebasic orange 311h-imidazolium, 2-(4-aminophenyl)azo-1,3-dimethyl-, chloride cas registry number: 97404-02-9