Certificate Of Analysis
Product Name Orange II sodium salt,
Dye content ~85 %
Product Number O8126
Product Brand SIGMA
CAS Number 633-96-5
Molecular Formula C16H11N2NaO4S
Molecular Weight 350.32
 
TEST SPECIFICATION LOT 028K3726 RESULTS
APPEARANCE ORANGE TO ORANGE BROWN POWDER ORANGE POWDER
SOLUBILITY CLEAR TO SLIGHTLY HAZY ORANGE TO RED- ORANGE SOLUTION AT 1 MG/ML IN WATER CLEAR ORANGE-RED
IR SPECTRUM CONSISTENT WITH STRUCTURE CONFORMS TO STRUCTURE
CARBON 46.6-63.1% 51.09%
NITROGEN 6.8-9.2% 7.49%
DYE CONTENT APPROX 85% 93%
QC RELEASE DATE FEBRUARY 2008