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105225 Cresol red

indicator Reag. Ph Eur

Cresol red MSDS (material safety data sheet) or SDS, CoA and CoQ, dossiers, brochures and other available documents.

Synonyms: o-Cresolsulfonphthalein

CAS #: 1733-12-6 EC Number: 217-064-2 Molar Mass: 382.43 g/mol Hill Formula: C₂₁H₁₈O₅S Grade: Reag. Ph Eur
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105225
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Overview

Replacement Information

Key Spec Table

CAS #EC NumberHill FormulaMolar MassGrade Value
1733-12-6217-064-2C₂₁H₁₈O₅S382.43 g/molReag. Ph Eur

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          Description
          Catalogue Number105225
          Synonymso-Cresolsulfonphthalein
          References
          Product Information
          CAS number1733-12-6
          EC number217-064-2
          GradeReag. Ph Eur
          Hill FormulaC₂₁H₁₈O₅S
          Molar Mass382.43 g/mol
          HS Code2934 99 99
          Structure formula ImageStructure formula Image
          Quality LevelMQ200
          Applications
          Biological Information
          Physicochemical Information
          Density0.998 g/cm3
          Melting Point290 °C decomposes
          Bulk density600 - 620 kg/m3
          Dimensions
          Materials Information
          Toxicological Information
          Safety Information according to GHS
          Storage class10 - 13 Other liquids and solids
          WGKWGK 3 highly 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 +2°C to +30°C.
          Packaging Information
          Transport Information
          Supplemental Information
          Specifications
          Appearance of solution(0,5 g/l; ethanol)passes test
          Identity (UV/VIS-Spectrum)passes test
          1st transition rangepH 0.5 - pH 2.5 pink - brownish yellow
          2nd transition rangepH 6.5 - pH 8.5 yellow - purple
          Absorption maximum λ 1 max. (buffer pH 0.5)517 - 520 nm
          Absorption maximum λ 2 max. (buffer pH 2.5)432 - 436 nm
          Absorption maximum λ 3 max. (buffer pH 6.5)432 - 436 nm
          Absorption maximum λ 4 max. (buffer pH 8.5)571 - 574 nm
          Spec. Absorptivity A 1%/1cm (λ 1 max.; 0.005 g/l; buffer pH 0.5; calc. on dried substances)≥ 1200
          Spec. Absorptivity A 1%/1cm (λ 2 max.; 0.005 g/l; buffer pH 2.5; calc. on dried substances)490 - 570
          Spec. Absorptivity A 1%/1cm (λ 3 max.; 0.005 g/l; buffer pH 6.5; calc. on dried substances)490 - 610
          Spec. Absorptivity A 1%/1cm (λ 4 max.; 0.005 g/l; buffer pH 8.5; calc. on dried substances)1000 - 1190
          Loss on drying (110 °C)≤ 5 %
          Sensitivity testpasses test
          Global Trade Item Number
          Catalogue Number GTIN
          1.05225.0005 04022536062419
          1.05225.0025 04022536062426