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Methyl red

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  Post Date: May 08,2022
  Expiry Date: May 08,2023
  Detailed Description: Cas No. :493-52-7 Methyl red
CAS NO.: 493-52-7
Synonyms: p-Dimethylaminoazobenzene-carboxylic acid
Molecular formula: C15H15O2N3
Molecular weight: 269.30
Property: shiny purple crystal. dissolve in ethanol and acetic acid, undissolved 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

  CAS Registry Number:

493-52-7
  Synonyms: ;C.I. Acid Red 2;C.I. Acid Red 2 (8CI);O-Methyl red;CI NO 13020;BROMOCRESOL GREEN-METHYL RED;BROMOCRESOL GREEN-METHYL RED ETHANOL;BROMOCRESOL GREEN/METHYL RED, MIXED INDICATOR;BROMOCRESOL GREEN/METHYL RED, MIX INDICATOR FOR ALKALINITY;METHYL RED INDICATOR;METHYL RED MIXED SOLUTION;2-{(E)-[4-(dimethylamino)phenyl]diazenyl}benzoic acid;5-(dimethylamino)-2-[(E)-phenyldiazenyl]benzoic acid;Methyl red;
  Molecular Formula: C15H15N3O2
  Molecular Weight: 269.2985
  Molecular Structure: 493-52-7 Methyl red chloride
  Hazard Symbols:  Xn:Harmful;
  Risk Codes: R10:;
R20/21/22:;
R68:;
  Safety Description: S36/37:;

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