- Poly(2-acrylamido-2-methyl-1-propanesulfonic acid) solution,average Mw 2,000,000, 15 wt. % in H2O, 5g
- Poly(2-acrylamido-2-methyl-1-propanesulfonic acid) solution,average Mw 2,000,000, 15 wt. % in H2O, 100g