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

SULFOBROMOPHTHALEIN SODIUM HYDRATE

Synonyms:				Phenolphthalein, 4,5,6,7-Tetrabromo-3’-,3” Disulfo-, 						Disodium Salt, (Sulfobromophthalein, sodium); 						Bromsulfalein; Bromthalein

CAS No.:				123359-42-2

Chemical Formula:			C20H8Br4Na2O10S2*xH2O 

Formula Weight:			838.03

Appearance:				White to Off-White to Grey to Light Brown Powder.

Identification (IR):			Conforms to structure 

Loss on drying:			< 7%

Lambda max.:			577 (366)nm in 0.1N sodium hydroxide

Sodium (Na):			5-5.8%

Color of solution:			Clear to slightly hazy,
 (5% in H2O)				Colorless to pale yellow solution

Effective Date: 12/16/15