108176 Thymol blue

108176
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Overview

Replacement Information

Key Specifications Table

CAS #EC NumberHill FormulaMolar MassGrade Value
76-61-9 200-973-3 C₂₇H₃₀O₅S 466.59 g/mol ACS,Reag. Ph Eur

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      Glass bottle 5 g
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      1081760025
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          Glass bottle 25 g
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          Description
          Catalogue Number108176
          SynonymsThymolsulfonphthalein
          References
          Product Information
          CAS number76-61-9
          EC number200-973-3
          GradeACS,Reag. Ph Eur
          Hill FormulaC₂₇H₃₀O₅S
          Molar Mass466.59 g/mol
          HS Code2934 99 90
          Structure formula ImageStructure formula Image
          Quality LevelMQ200
          Applications
          Biological Information
          Physicochemical Information
          Melting Point221 °C (decomposition)
          Bulk density350 kg/m3
          Solubility0.11 g/l
          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
          StorageStore at +15°C to +25°C.
          Packaging Information
          Transport Information
          Supplemental Information
          Specifications
          Clarity of solution (1 g/l; ethanol)passes test
          Identity (UV/VIS-Spectrum)passes test
          1st transition rangepH 1.2 - pH 2.8 violet red - brownish yellow
          2nd transition rangepH 7.8 - pH 9.5 greenish yellow - blue
          Absorption maximum λ 1 max. (buffer pH 1,2)543 - 547 nm
          Absorption maximum λ 2 max. (buffer pH 2,8)431 - 437 nm
          Absorption maximum λ 3 max. (buffer pH 7.8)431 - 437 nm
          Absorption maximum λ 4 max. (buffer pH 9.5)594 - 598 nm
          Spec. Absorptivity A 1%/1cm (λ 1 max.; 0.01 g/l; buffer pH 1,2; calc. on dried substances)600 - 720
          Spec. Absorptivity A 1%/1cm (λ 2 max.; 0.01 g/l; buffer pH 2,8; calc. on dried substances)250 - 370
          Spec. Absorptivity A 1%/1cm (λ 3 max.; 0.01 g/l; buffer pH 7.8; calc. on dried substances)250 - 370
          Spec. Absorptivity A 1%/1cm (λ 4 max.; 0.01 g/l; buffer pH 9.5; calc. on dried substances)580 - 700
          Loss on drying (110 °C)≤ 3 %
          Transition range (according to ACS)passes test
          Sensitivity testpasses test