We are Liaoning Fine Chemical Co.,ltd,is mainly produce mordant dyes,and some dyes intermediates. Our Tel:0086-415-6677221,Fax:0086-415-7151000. e-mail:kexin9799@yahoo.com.cn. mordant black 11,9,7,and dyesintermediates:6-nitro-1-diazo-2-naphthol-4-sulfonic acid,1.2-diazoxy -4-naphthol sulfonic acid. [ Click for details ]