m-Cresol Purple Indicator

  • CAS :
    2303-01-7
  • REF :
    24977
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QUANTITY PRICE ENQUIRY
1 gm Rs 437.5
5 gm Rs 1662.5

Product Information

Formula: C₂₁H₁₈O₅S CAS: 2303-01-7 EC No.: 218-963-8 M (Molar Mass): 382.43 g/mol pH Transition Range: 1.2 (red) to 2.8 (yellow), 7.4 (yellow) to 9.0 (purple) λmax: 530 nm (acidic), 575 nm (basic)

Chemicals Properties

Dye Content: ≥ 80% Appearance: Greenish-brown powder pH Ranges: First range 1.2-2.8, second range 7.4-9.0 Loss on Drying: ≤ 2.0% Sulfated Ash: ≤ 1.0% Solubility: Soluble in ethanol, methanol; slightly soluble in water Indicator Test: Satisfactory for both pH ranges Heavy Metals (as Pb): ≤ 30 ppm Absorbance (0.1% in ethanol): E₁%₁cm ≥ 200 at 530 nm

Hazard Information

Hazard: May be harmful if swallowed or inhaled. Safety: Use with adequate ventilation. Avoid dust formation. Storage: Store in tightly closed container at room temperature.