Shenyang Joinunion Chemical Technology Co.,Ltd.

Search：
You are here: HomeProductsMethyl red

Contact us

  • Company Name: Shenyang Joinunion Chemical Technology Co.,Ltd.
  • Street: No.90 South Jingxing Street Tiexi District
  • City: Shenyang
  • Province/state: Liaoning
  • Country/region: China
  • Contact Person: Mr.Xu Fu
  • Tel: 86-024-25439090
  • Fax: --
  • Email:

Methyl red

  • CAS No:493-52-7 2-[[4-(dimethylamino)phenyl]diazenyl]benzoic acid
    Molecular Structure

    Detailed Description

    Methyl red
    CAS NO.: 493-52-7
    Synonyms: p-Dimethylaminoazobenzene-carboxylic acid
    Molecular formula: C15H15O2N3
    Molecular weight: 269.30
    Property: shiny purple crystal. soluble in ethanol and acetic acid, insoluble in water.
    Use: acid-base indicator. Adsorption indicator.
    Storage require:sealed .
    Range of melting point : 172.0-182.0 (2C spacing)
    Range of PH: 4.2 (red)-6.2 (yellow)
    Solubility test in ethanol: passed
    Residue on ignition (sulfate): 0.2% Max.
    Oxidated test (bromine): passed