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Molecular weight: 607.4 D", "Language": "en", "Country": "XG", "Code": "Properties" }, { "Name": "Specification", "Value": "Identity (HPLC): corresponds to specification
Appearance (orange-red powder): corresponds
Solution (c = 20 mg/ml water; clear, red): corresponds
A578 (c=5 mmol/l water) : ≤0.090
A650 (c=5 mmol/l water; turbidity): ≤0.030
Purity (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.", "Language": "en", "Country": "XG", "Code": "Specification" } ] } } ] }

Chlorophenolred-beta-D-galactopyranoside (CPRG) high pure

sodium salt, powder

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