2-Formylbenzenesulfonic acid sodium salt,4,4'-Diaminostilbene-2,2'diasulfonic acid,4-Nitrotoluene-2-Sulphonic Acid,Disodium 4,4'-dinitrostilbene-2,2'-disulfonate,4,4'-bis(chloromethyl)-1,1'-biphenyl--Lion Chemical Corporation

Products

4,4’-Diaminostilbene-2,2’diasulfonic acid

Chemical name:

4,4’-Diaminostilbene-2,2’diasulfonic acid (DSD ACID)

Structural formula:

Molecular formula:

C₁₄H₁₄N₂O₆S₂

Molecular weight :

370.4

CAS number :

81-11-8

Specification:

Appearance	Yellowish powder	Yellowish paste
Assay (Amino value)	=95%	= 60%
Assay (HPLC)	= 95%	= 95%
Content of DND	= 0.5%	= 0.5%
Content of alkaline undissolved matter	= 0.1%	= 0.1%
Ash content	= 2.50%	= 2.50%
Gardner Color	= 12	= 12

Application:

Used in the synthesis of fluorescent brightening agent, Chrysophenine G , Sun yellow and Pesticide. Insecticide