4,4'-DIAMINO -2,2'-STILBENEDISULFONIC ACID

 

4,4'-DIAMINO -2,2'-STILBENEDISULFONIC ACID

 

SYNONYM:  4,4'-DIAMINOSTILBENE -2,2'-DISULFONIC ACID;     DSD ACID

 

FORMULA: C14H14N2O6S2

 

M. W.: 370.4

 

CAS NO.: 81-11-8

 

DESCRIPTION: LIGHT YELLOW PASTE OR POWDER, SOLUBLE IN ALCOHOL AND EITHER; INSOLUBLE IN WATER, READILY SOLUBLE IN ALKALI. EASILY BE OXIDIZED TO RED IN AIR, IT HAS PROPERTIES OF AROMATIC ACID AND AROMATIC AMINE.

 

SPECIFICATIONS:

AMINO VALUE

95%MIN.

CHROMA

9 MAX.

INSOLUBLES IN ALKALI

0.1%MAX.

BENZYL MATTER

0.25%MAX.

MOISTURE

1.5%MAX.

 

USES: USED IN MANUFACTURE OF FLUORESCENT WHITENING AGENT. DIRECT CHRYSOPHENINE G. DIRECT YELLOW R AND USED AS INSECT PREVENTIVE ETC.

 

PACKING: 25KG/BAG, 10MT/20’FCL.