formaldehyde, polymer with 3-methylphenol, 6-diazo-5,6-dihydro-5-oxo-1-naphthal

Formaldehyde, polymer with 3-methylphenol, 6-diazo-5,6-dihydro-5-oxo-1-naphthalenesulfonate

3-Methylphenol, polymer with formaldehyde, post-treated with 6-diazo-5,6-dihydro-5-oxo-1-naphthalenesulfonyl chloride