Compound Q&A
What is 4,4'-Diaminostilbene-2,2'-disulfonic acid (CAS: 81-11-8)?
Answer
4,4'-Diaminostilbene-2,2'-disulfonic acid (CAS: 81-11-8) is an organic compound with the chemical formula C14H12N2O6S2. It is a white crystalline solid, commonly used as a pH indicator and dye. The compound is known for its strong absorption in the visible spectrum and its ability to change color with pH, making it valuable in analytical chemistry applications.
About
CAS No
81-11-8
English Name
4,4'-Diaminostilbene-2,2'-disulfonic acid
Molecular Formula
C14H14N2O6S2
Molecular Weight
370.4 g/mol
SMILES
C1=CC(=C(C=C1N)S(=O)(=O)O)C=CC2=C(C=C(C=C2)N)S(=O)(=O)O
InChIKey
REJHVSOVQBJEBF-OWOJBTEDSA-N
Last Updated: 2025-08-25 01:08
