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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

 

 

 

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