S P E C I F I C A T I O N S

SULFANILIC ACID ANHYDROUS ACS

Synonyms:			 		4-Aminobenzenesulfonic Acid

CAS No.:					121-57-3

Chemical Formula:				C6H7NO3S 

Formula Weight:				173.19

Appearance:					White to Off-white crystalline powder

Assay:						98.0 – 102.0%

Melting Point:				286 – 292 Deg. C

Residue after Ignition:			< 0.01%

Chloride  (Cl):				< 0.002%

Nitrite  (NO2):				< 0.5 ppm

Sulfate  (SO4):				< 0.01%

Insoluble in Sodium 
 Carbonate Solution:			< 0.02%

Effective Date: 01/15/2009