For further processing only. Others Chlorophenolred-beta-D-galactopyranoside CPRG high pure Chlorophenolred-beta-D-galactopyranoside (CPRG) high pure 3.7.3.3.4.3 sodium salt, powder 07930097103 CPRG high pure Chlorophenolred-beta-D-galactopyranoside (CPRG) high pure Reagents, kits custom fill Not Available CustomBiotech product. Please contact your local representative. Will be supplied as "CPRG high pure". Unit of measure is "g". Use CPRG high pure as a substrate for ß-Galactosidase. en Identity (HPLC): corresponds to specificationAppearance (orange-red powder): correspondsSolution (c = 20 mg/ml water; clear, red): correspondsA578 (c=5 mmol/l water) : ≤0.090A650 (c=5 mmol/l water; turbidity): ≤0.030Purity (HPLC, 265 nm): ≥97.5 area%Purity (HPLC, 220 nm): ≥88 area%Carbinol (HPLC): ≤10 area%Total (CPRG+Carbinol, HPLC): ≥98 area%Assay CPRG (A405): 80-110%Na (flame photometric): 3-4%Water (K. Fischer): ≤15%Chlorophenolred, free: ≤0.075%Galactose, free (enzymatic): ≤5.0%Reaction rate (β-galactosidase) of sample/CPRG standard: 80-120%Reaction rate (β-galactosidase) of sample/2-NP-galactoside: ≥8.5%Stability: At -15 to -25°C within specification range for 36 months. Store dry. Keep tightly closed. en