Free release

660838-83-5 2,7-naphthalenedisulfonic acid,5-amino-4-hydroxy-3-[[4-(phenylazo)phenyl]azo]-, disodium

service@apichina.com
Product Name 2,7-Naphthalenedisulfonic acid,5-amino-4-hydroxy-3-[[4-(phenylazo)phenyl]azo]-, disodium salt
CAS No. 660838-83-5
Molecular Formula C22H17N5O7S2・2Na