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CAS No 143-74-8 , 4-[3-(4-hydroxyphenyl)-1,1-dioxo-2,1λ

  • Name: 4-[3-(4-hydroxyphenyl)-1,1-dioxo-2,1λ
  • Synonyms: NSC10459; phenolsulfonphthalein;PHENOL RED;6-benzoxathiol-3-yl]phenol; 143-74-8; Sulfonphthal;4-[3-(4-hydroxyphenyl)-1,1-dioxo-2,1λ Phenolsulphonphthalein; Sulphonthal; Fenolipuna; Sulphental;
  • CAS Registry Number:
  • Transport: OTH
  • Melting Point: 300 ºC
  • Flash Point: 79 C
  • Boiling Point: >300°C
  • Density: 1.477 g/cm3
  • Refractive index: 1.4334 (18 C)
  • Water Solubility: 0.77 G/L
  • Safety Statements: R36/37/38
  • Hazard Symbols: Xi: Irritant;
  • HS Code: 29349990
  • Flash Point: 79 C
  • EINECS: 205-609-7
  • Molecular Weight: 354.37646
  • InchiKey: BELBBZDIHDAJOR-UHFFFAOYSA-N
  • InChI: InChI=1S/C19H14O5S/c20-15-9-5-13(6-10-15)19(14-7-11-16(21)12-8-14)17-3-
    1-2-4-18(17)25(22,23)24-19/h1-12,20-21H
  • Risk Statements: S26;S37/39
  • Molecular Formula: C19H14O5S
  • Molecular Structure:CAS No:143-74-8 4-[3-(4-hydroxyphenyl)-1,1-dioxo-2,1λ
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143-74-8 PHENOL RED

  • Germany ABCR GmbH & Co KG [Manufacturer]
  • Tel: +49 721 95061-0
  • Fax: +49 721 95061-80
  • Address: Im Schlehert 10
    76187 Karlsruhe
    Germany null,nullGermany
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143-74-8 Phenol Red

  • China Hainan Zhongxin Chemical Co., Ltd. [Manufacturer]
  • Tel: + 86 898 6854 0310/ + 86 21 64361616
  • Fax: + 86 898 6854 0119
  • Address: HAINAN COMPANY
    Address: Rm 811, Hainan Mandarin Hotel,
    Binhai Avenue, Haikou city,
    Hainan, P.R.China
    Tel: + 86 898 6854 0310
    Fax: + 86 898 6854 0119 null,nullChina
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143-74-8 Phenol Red

  • United States HBCChem, Inc. [Manufacturers]
  • Tel: +1-510-219-6317
  • Fax: +1-510-675-0318
  • Address: null Union City,CaliforniaUnited States
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143-74-8 PHENOL RED

  • China Shanghai Sunwise Chemical Co., Ltd. [Manufacturer]
  • Tel: +86-21-64063188
  • Fax: +86-21-64062858
  • Address: Shanghai Sunwise Chemical Co., Ltd.
    7G, No 1235 Wuzhong Road
    Shanghai P.R.China null,nullChina
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143-74-8 PHENOL RED

  • Germany AppliChem GmbH [Manufacturer]
  • Tel: +49 6151 93 57 0
  • Fax: +49 6151 93 57 11
  • Address: AppliChem GmbH
    Ottoweg 4
    64291 Darmstadt
    Germany null,nullGermany
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143-74-8 P-2800 PHENOL RED

  • Switzerland Biosynth AG [Manufacturer]
  • Tel: +41 71 858 20 20/ 630.305.8400 (USA)
  • Fax: +41 71 858 20 30
  • Address: BIOSYNTH AG
    Rietlistrasse 4
    9422 Staad / Switzerland
    Phone: +41 (0)71 858 20 20
    Fax: +41 (0)71 858 20 30 null,nullSwitzerland
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143-74-8 Phenol red

  • China Shanghai Experiment Reagent Co.,LTD. [Manufacturers]
  • Tel: 0086-21-56558317 56553837
  • Fax: +86-21-56553837
  • Address: 10-603, No.555 Luding Road (No.1000 North Zhongshan Road),Shanghai Shanghai,ShanghaiChina
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143-74-8 PHENOL RED FREE ACID ACS

  • United States Dudley Chemical Corp. [Manufacturer]
  • Tel: (732) 886-3100
  • Fax: (732) 886-3688
  • Address: Dudley Chemical Corp.
    125 Kenyon Drive
    Lakewood, NJ 08701 null,nullUnited States
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143-74-8 Phenol Red

  • India Nile Chemicals [Manufacturers]
  • Tel: +91-(22)-66313162, 23454828
  • Fax: +91-(22)-23454828
  • Address: 202, Matruchhaya, 378/80 Narshi Natha Street, Mumbai, Maharashtra 400 009, Mumbai,MumbaiIndia
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143-74-8 PHENOL RED, REAGENT

  • United States Lab Express International Inc. [Manufacturer]
  • Tel: 973-227-1700/ 800-364-5291
  • Fax: 973-227-0023
  • Address: 10 Madison Road, Suite A,
    Fairfield, NJ 07004 null,nullUnited States
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References of 4-[3-(4-hydroxyphenyl)-1,1-dioxo-2,1λ
Title: Phenolsulfonphthalein
CAS Registry Number: 143-74-8
CAS Name: 4,4¢-(3H-2,1-Benzoxathiol-3-ylidene)bisphenol S,S-dioxide
Synonyms: a-hydroxy-a,a-bis(p-hydroxyphenyl)-o-toluenesulfonic acid g-sultone; 3,3-bis(p-hydroxyphenyl)-3H-2,1-benzoxathiole 1,1-dioxide; phenol red; P.S.P.
Trademarks: Sulfonphthal
Molecular Formula: C19H14O5S
Molecular Weight: 354.38
Percent Composition: C 64.40%, H 3.98%, O 22.57%, S 9.05%
Literature References: Prepd by the action of o-sulfobenzoic anhydride or of o-sulfobenzoyl chloride on phenol: Kekulé, Barbaglia, Ber. 5, 876 (1872); Kekulé, Ber. 6, 943 (1873); Heumann, Kochlin, Ber. 15, 1118 (1882); DE 142116; Chem. Zentralbl. II, 79 (1903); Orndorff, Sherwood, J. Am. Chem. Soc. 45, 486 (1923). Diagnostic use: G. Dunea, P. Freedman, J. Am. Med. Assoc. 204, 159 (1968); R. D. Wilkes et al., Vet. Med. Small Anim. Clin. 76, 289 (1981). Molecular structure: K. Yamaguchi et al., Anal. Sci. 13, 521 (1997).
Properties: Bright red to dark red crystals. Stable in air. pK = 7.9. d 1.445 Mg m-3. One gram dissolves in ~1300 ml water, in ~350 ml alc, in 500 ml acetone. Almost insol in chloroform, ether. Readily sol in aq alkali hydroxides or carbonates with red color, which is discharged by boiling with zinc dust.
pKa: pK = 7.9
Density: d 1.445 Mg m-3
Use: As indicator in 0.02-0.05% alcohol soln. pH 6.8 yellow, 8.4 red.
Therap-Cat: Diagnostic aid (renal function).
Therap-Cat-Vet: Diagnostic aid (renal function).
Keywords: Diagnostic Aid.