Phthalic acid, bis-methylglycol ester, certified, 0.25g Back Catalog number: C16174400 Availability: In the manufacturer's stock Price on request - + Recommended CYA Cyanuric Acid, 1.2ml x 100ug/ml, water Price on request 82423 EPA Method 8240A Mix #3 Price on request 72268 Thiamine Price on request