• Chemical Manufacturer of Laboratory Reagents, Bulk Inorganics and Organics for Process Chemistry Since 1928.

Analytical Analytical Stains, Dyes and Indicators Stains, Dyes and Indicators 5509 1,AMINO,2,NAPHTHOL,4,SULFONIC ACID AMINO,2,NAPHTHOL,4,SULFONIC ACID 2,NAPHTHOL,4,SULFONIC ACID NAPHTHOL,4,SULFONIC ACID 4,SULFONIC ACID SULFONIC ACID INDICATOR GRADE H₂N(OH)C₁₀H₅SO₃H 239.26 116,63,2 116632 63,2 11663,2 116 63 2 NR 12076 38.80 25 G 12077 86.80 100 G 4-AMINO-3-HYDROXY-1-NAPHTHALENESULFONIC ACID Assay 95% min. Solubility in sodium carbonate - pass test Sensitivity to phosphate - pass test