Home > Name List By 2 > 2,6-dibromo-4-[3-(3,5-dibromo-4-hydroxyphenyl)-1,1-dioxo-2, 1λ

CAS No 115-39-9 , 2,6-dibromo-4-[3-(3,5-dibromo-4-hydroxyphenyl)-1,1-dioxo-2,
1λ

  • Name: 2,6-dibromo-4-[3-(3,5-dibromo-4-hydroxyphenyl)-1,1-dioxo-2,
    1λ
  • Synonyms: 6-benzoxathiol-3-yl]phenol; 3,3',5,5'-Tetrabromophenolsulfonphthalein; BROMPHENOL BLUE; Albutest; 115-39-9;Bromophenol blue; Tetrabromphenol Blue;2,6-dibromo-4-[3-(3,5-dibromo-4-hydroxyphenyl)-1,1-dioxo-2,
    1λ
  • CAS Registry Number:
  • Transport: OTH
  • Melting Point: 273 ºC
  • Flash Point: 320.1°C
  • Boiling Point: 605.6°Cat760mmHg
  • Density: 1
  • Refractive index: 1.743
  • Safety Statements:
    Hazard Codes T
    Risk Statements 61-20/21-36
    Safety Statements 53-45-24/25-22
    RIDADR UN 2265 3/PG 3
    WGK Germany 3
    RTECS SJ7453000
    HS Code 29349990
  • Hazard Symbols: T, Xn
  • HS Code: 29349990
  • Flash Point: 320.1°C
  • EINECS: 204-086-2
  • Molecular Weight: 669.9607
  • InchiKey: UDSAIICHUKSCKT-UHFFFAOYSA-N
  • InChI: InChI=1S/C19H10Br4O5S/c20-12-5-9(6-13(21)17(12)24)19(10-7-14(22)18(25)15
    (23)8-10)11-3-1-2-4-16(11)29(26,27)28-19/h1-8,24-25H
  • Risk Statements: S22;S24/25
  • Molecular Formula: C19H10Br4O5S
  • Molecular Structure:CAS No:115-39-9 2,6-dibromo-4-[3-(3,5-dibromo-4-hydroxyphenyl)-1,1-dioxo-2,<br />1λ

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References of 2,6-dibromo-4-[3-(3,5-dibromo-4-hydroxyphenyl)-1,1-dioxo-2,
1λ
Title: Bromphenol Blue
CAS Registry Number: 115-39-9
CAS Name: 4,4￠-(3H-2,1-Benzoxathiol-3-ylidene)bis[2,6-dibromophenol] S,S-dioxide
Synonyms: a,a-bis(3,5-dibromo-4-hydroxyphenyl)-a-hydroxy-o-toluenesulfonic acid g-sultone; 3,3￠,5,5￠-tetrabromophenolsulfonphthalein
Trademarks: Albutest (Miles)
Molecular Formula: C19H10Br4O5S
Molecular Weight: 669.96
Percent Composition: C 34.06%, H 1.50%, Br 47.71%, O 11.94%, S 4.79%
Literature References: Prepd by slow addition of excess bromine to a hot soln of phenolsulfonphthalein in glacial acetic acid: White, Acree, J. Am. Chem. Soc. 41, 1205 (1919); Orndorff, Sherwood, ibid. 45, 495 (1923). See also ref given under Bromcresol Green.
Properties: Elongated hexagonal prisms from acetic acid + acetone. Dec 279°. (An orange discoloration with formation of a green sublimate sets in at 210°). Soluble in water (about 0.4 g/100 ml); more sol in methyl and ethyl alcohol, and in benzene. Freely sol in NaOH solns with the formation of a water-sol sodium salt. pK = 4.0. To prepare a soln for use as pH indicator, dissolve 0.10 g in 7.45 ml N/50 NaOH and dil with water to 250 ml.
pKa: pK = 4.0
Use: As indicator, pH 3.0 yellow; pH 4.6 purple.