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CAS No 554-73-4 , sodium

  • Name: sodium
  • Synonyms: Orange GS;4-[(4-anilinophenyl)diazenyl]benzenesulfonate; Orange N; 554-73-4; Tropaeolin; SBB058255; Diphenylamine Orange; C.I. 13080; Tropeolin OO;Orange IV;sodium;
  • CAS Registry Number:
  • Flash Point: °C
  • Boiling Point: °Cat760mmHg
  • Density: g/cm3
  • Water Solubility: Sol in water
  • Safety Statements: R20/21/22
  • Hazard Symbols: Xn: Harmful;
  • Flash Point: °C
  • EINECS: 209-071-4
  • Molecular Weight: 375.376829
  • InchiKey: MLVYOYVMOZFHIU-UHFFFAOYSA-M
  • InChI: InChI=1S/C18H15N3O3S.Na/c22-25(23,
    24)18-12-10-17(11-13-18)21-20-16-8-6-15(7-9-16)19-14-4-2-1-3-5-14;/h1-
    13,19H,(H,22,23,24);/q;+1/p-1
  • Risk Statements: S36/37
  • Molecular Formula: C18H14N3NaO3S
  • Molecular Structure:CAS No:554-73-4 sodium

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554-73-4 Orange IV

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References of sodium
Title: Tropaeolin OO
CAS Registry Number: 554-73-4
CAS Name: 4-[[4-(Phenylamino)phenyl]azo]benzenesulfonic acid monosodium salt
Synonyms: C.I. Acid Orange 5; p-[(p-anilinophenyl)azo]benzenesulfonic acid sodium salt; sodium p-[(p-anilinophenyl)azo]benzenesulfonate; Diphenylamine Orange; Orange GS; Orange N; Orange IV; Fast Yellow; Acid Yellow D; C.I. 13080
Molecular Formula: C18H14N3NaO3S
Molecular Weight: 375.38
Percent Composition: C 57.59%, H 3.76%, N 11.19%, Na 6.12%, O 12.79%, S 8.54%
Literature References: Prepd from diphenylamine and p-sulfobenzenediazonium chloride, followed by reaction with NaOH: Witt, Ber. 12, 258 (1879); Colour Index vol. 4 (3rd ed., 1971) p 4045.
Properties: Orange-yellow scales or yellow powder. Sol in water.
Use: As indicator. pH: red 1.4 to yellow 2.6.