2,7-Naphthalenedisulphonic acid (Na)

2,7-Naphthalenedisulfonic acid disodium salt (CAS 1655-35-2) is a chemical-grade advanced intermediate manufactured directly by Speranza Chemical Co., Ltd., produced to a broad set of pharmacopeia standards including ChP, USP, BP, EP, JP, Ph.Int. and IP. It is distributed across North America, Central/South America, Europe, Australasia, Asia, the Middle East and Africa.