General description
indicator
Analysis Note
Identity (UV/VIS-Spectrum): passes test
Transition range: pH 11.5 - pH 13.0 blue-violet - dark-pink
Absorption maximum λmax. (Ethanol): 597 - 602 nm
Spec. Absorptivity A 1%/1cm (λmax; 0.003 g/l; ethanol abs.; calculated on dried substance): ≥ 1000
TLC-Test: passes test
Loss on drying (110 °C): ≤ 5 %
Suitability as indicator (according to DIN 51558): passes test
Molecular Weight: 595.71. Empirical Formula: C
37H
29N
3O
3S. Agency: suitable for DIN 51558. Quality Level: 200. form: solid. loss: ≤. 5% loss on drying, 110°C. visual transition interval: 11.5-13, blue-violet to pink. λ.
max: 597-602 nm in ethanol. storage temp.: 2-30°C. InChI: 1S/C37H29N3O3S/c41-44(42,43)36-14-8-7-13-35(36)40-34-25-19-29(20-26-34)37(27-15-21-32(22-16-27)38-30-9-3-1-4-10-30)28-17-23-33(24-18-28)39-31-11-5-2-6-12-31/h1-26,38-39H,(H,41,42,43). InChI key: DVPLSZDCYOJSOG-UHFFFAOYSA-N. Storage Class Code: 11 - Combustible Solids. WGK: WGK 3. Flash Point(F): Not applicable. Flash Point(C): Not applicable.