1,5-NAPHTHALENEDISULFONIC ACID, 3-((p-(BIS(2-CHLOROETHYL)AMINO)PHENYL)AZO)- 101931-20-8 3-((p-(Bis(2-chloroethyl)amino)phenyl)azo)-1,5-naphthalenedisulfonic acid 3-(4-Bis(beta-chloroethyl)aminophenylazo)-1,5-naphthalenedisulfonic acid 4-16-00-00514 (Beilstein Handbook Reference) BRN 3516411