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CAS No 1733-12-6 , 4-[3-(4-hydroxy-3-methylphenyl)-1,1-dioxo-2,

  • Name: 4-[3-(4-hydroxy-3-methylphenyl)-1,1-dioxo-2,
  • Synonyms: 1733-12-6;4-[3-(4-hydroxy-3-methylphenyl)-1,1-dioxo-2,
    6-benzoxathiol-3-yl]-2-methylphenol; Cresolsulfophthalein; NSC7224; o-Cresolsulfonephthalein;o-Cresol Red; o-Cresolsulfonphthalein;
  • CAS Registry Number:
  • Melting Point: 290 ºC
  • Density: 1.404 g/cm3
  • Refractive index: 1.652
  • Safety Statements: 24/25
  • Hazard Symbols: Xi: Irritant;
  • HS Code: 29349990
  • EINECS: 217-064-2
  • Molecular Weight: 382.42962
  • InchiKey: OBRMNDMBJQTZHV-UHFFFAOYSA-N
  • InChI: InChI=1S/C21H18O5S/c1-13-11-15(7-9-18(13)22)21(16-8-10-19(23)14(2)12-16)
    17-5-3-4-6-20(17)27(24,25)26-21/h3-12,22-23H,1-2H3
  • Risk Statements: S24/25
  • Molecular Formula: C21H18O5S
  • Molecular Structure:CAS No:1733-12-6 4-[3-(4-hydroxy-3-methylphenyl)-1,1-dioxo-2,<br />1λ
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1733-12-6 CRESOL 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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1733-12-6 Cresol red

  • Cresol red
  • China Shanghai Synnad Chemical Co., Ltd. [Importer/Exporter]
  • Tel: 86 21 5109 7911
  • Fax: 86 21 5109 7955
  • Address: B-5 Ecust Science Park, No. 18, Lane 1305, Hua Jing Road, Shanghai 200231 China Shanghai,ShanghaiChina
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1733-12-6 Cresol Red

  • China ORCHID CHEMICAL SUPPLIES LTD (OCS) [Importer/Exporter]
  • Tel: +86-571-85395792
  • Fax: +86-571-85420103
  • Address: 607, North Zhongshan Road, Hangzhou 310000 China null,ZhejiangChina
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1733-12-6 Cresol Red

  • China Hangzhou Sage Chemical Co., Ltd. [Manufacturer]
  • Tel: +86-571-86818502
  • Fax: +86-571-86818503
  • Address: RM501 Tower A, New Youth Plaza, NO.8 Jia Shan Road, Hangzhou, Zhejiang 310014, null,ZhejiangChina
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1733-12-6 Cresol Red

  • China Shanghai Xunxin Chemical Co., Ltd [Manufacturers]
  • Tel: +86-(21)-38218795
  • Fax: +86-(21)-38218795
  • Address: 580 Lane, Kanghong Road, Pudong New District, Shanghai 201315, Shanghai,ShanghaiChina
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1733-12-6 Cresol Red

  • United States GFS Chemicals, Inc. [Manufacturer]
  • Tel: 800-858-9682/ 740-881-5501
  • Fax: 740-881-5989
  • Address: GFS Chemicals, Inc.
    P.O. Box 245
    Powell, OH 43065 null,nullUnited States
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1733-12-6 CRESOL 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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1733-12-6 cresol red

  • China Shanghai Experiment Reagent Co.,LTD. [Manufacturers]
  • Tel: 0086-21-56558317 56553837
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  • Address: 10-603, No.555 Luding Road (No.1000 North Zhongshan Road),Shanghai Shanghai,ShanghaiChina
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1733-12-6 Cresol Red

  • Cresol Red
  • United Kingdom Molekula Ltd [Manufacturer]
  • Tel: +44 1202 863000
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  • Address: Technology House Old Forge Road Ferndown Industrial Estate Wimborne Dorset Bh21 7RR null,nullUnited Kingdom
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1733-12-6 CRESOL RED

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  • India CHEMPURE [Manufacturer]
  • Tel: 0091-22-26764461/ 0091-22-26764462
  • Fax: 0091-22-26764023
  • Address: 328,Ashirwad Industrial Estate Bldg No.3 Ram Mandir Road,Goregaon (West) Mumbai- 400104 India Tel:0091-22-26764461 0091-22-26764462 0091-22-26764139 Fax:0091-22-26764023 Cell: 09821531478 email: chempure@bom2.vsnl.net.in 400104 MUMBAI MUMBAI,nullIndia
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References of 4-[3-(4-hydroxy-3-methylphenyl)-1,1-dioxo-2,
Title: Cresol Red
CAS Registry Number: 1733-12-6
CAS Name: 4,4¢-(1,1-Dioxido-3H-2,1-benzoxathiol-3-ylidene)bis[2-methylphenol]
Synonyms: a-hydroxy-a,a-bis(4-hydroxy-m-tolyl)-o-toluenesulfonic acid g-sultone; o-cresolsulfonphthalein
Molecular Formula: C21H18O5S
Molecular Weight: 382.43
Percent Composition: C 65.95%, H 4.74%, O 20.92%, S 8.38%
Literature References: pH sensitive dye. Prepn: M. D. Sohon, Am. Chem. J. 20, 257 (1898); and properties: H. A. Lubs, W. M. Clark, J. Wash. Acad. Sci. 6, 481 (1916). Raman spectrum: K. Machida et al., J. Raman Spectrosc. 8, 172 (1979). Ionization and spectral properties: R. Casula et al., Talanta 40, 1781 (1993); M. C. Aragoni et al., ibid. 42, 1157 (1995). Protein dye binding stoichiometry: I. Molnár-Perl et al., Food Chem. 35, 69 (1990). Use in detection of alkaloids via ion-associates: Z. Skalican et al., Anal. Lett. 28, 1223 (1995); as pH indicator for emission of NO2 in museum collections: J. Fenn, Polym. Prepr. 37, 170 (1996); for archived photographic films: J. C. Harthan et al., Imaging Sci. J. 45, 81 (1997); for microbiological media: L. A. Actis et al., J. Microbiol. Methods 39, 79 (1999).
Properties: Reddish-brown cryst powder. Sol in alcohol. pH 0.2: red; pH 1.8 yellow; pH 7.2 yellow; pH 8.8 reddish-purple.
Use: Acid-base indicator.