1.07534

Pyrogallol red

metal indicator

• Synonym(s): Pyrogallol red, Pyrogallic acid
• Empirical Formula (Hill Notation): C₁₉H₁₂O₈S
• CAS Number: 32638-88-3
• Molecular Weight: 400.36
• MDL number: MFCD00005046
• UNSPSC Code: 12171502
• EC Index Number: 251-134-3
• NACRES: NA.21

Properties

• product name: Pyrogallol red, metal indicator
• Quality Level: 200
• form: solid
• loss: ≤5.0% loss on drying, 110°C
• mp: >300 °C
• storage temp.: 2-30°C
• InChI: 1S/C19H12O8S/c20-12-7-5-10-15(9-3-1-2-4-14(9)28(24,25)26)11-6-8-13(21)17(23)19(11)27-18(10)16(12)22/h1-8,20,22-23H,(H,24,25,26)/p-1
• InChI key: JTZKNOUMMWIARI-UHFFFAOYSA-M

Description

Application

• Relationship between the structures of flavonoids and oxygen radical absorbance capacity values: a quantum chemical analysis.: This study explores the role of Pyrogallol Red in analyzing the antioxidant properties of flavonoids, providing insights into its utility in quantifying oxygen radical absorbance capacities, essential for evaluating the antioxidative potential of various substances in analytical chemistry applications (Zhang et al., 2013).

Analysis Note

Appearance of solution: conforms
Loss on drying (110 °C): ≤ 5.0 %
Suitability as indicator (for metal titration): conforms

Safety Information

• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable