108175 Thymolphthalein

108175
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Overview

Replacement Information

Key Specifications Table

CAS #EC NumberHill FormulaMolar MassGrade Value
125-20-2 204-729-7 C₂₈H₃₀O₄ 430.54 g/mol ACS,Reag. Ph Eur

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      1081750025
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          1081750100
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              Description
              Catalogue Number108175
              References
              Product Information
              CAS number125-20-2
              EC number204-729-7
              GradeACS,Reag. Ph Eur
              Hill FormulaC₂₈H₃₀O₄
              Molar Mass430.54 g/mol
              HS Code2932 20 90
              Structure formula ImageStructure formula Image
              Quality LevelMQ200
              Applications
              Biological Information
              Physicochemical Information
              Melting Point253 °C
              Bulk density400 kg/m3
              Dimensions
              Materials Information
              Toxicological Information
              Safety Information according to GHS
              Storage class10 - 13 Other liquids and solids
              WGKWGK 2 obviously hazardous to water
              Disposal3
              Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.
              Safety Information
              Product Usage Statements
              Storage and Shipping Information
              StorageStorage temperature: no restrictions.
              Packaging Information
              Transport Information
              Supplemental Information
              Specifications
              Identity (UV/VIS-Spectrum)passes test
              AppearanceWhite to almost white powder, eventually slightly yellowish.
              Clarity of solution (1 g/l; ethanol)passes test
              Absorption maximum λmax. (buffer pH 10.5)592 - 596 nm
              Spec. Absorptivity A 1%/1cm (λmax; 0.01 g/l; buffer pH 10.5; calculated on anhydrous substance)800 - 900
              Transition rangepH 9.0 - pH 10.5 colourless - blue
              Transition range (according to ACS)passes test
              Transition interval (according Reag. Ph. Eur.)passes test
              Loss on drying (110 °C)≤ 1 %