Basic information Safety Supplier Related

disodium 2-(4,5-dibromo-6-oxido-3-oxoxanthen-9-yl)benzoate

Basic information Safety Supplier Related

disodium 2-(4,5-dibromo-6-oxido-3-oxoxanthen-9-yl)benzoate Basic information

Product Name:
disodium 2-(4,5-dibromo-6-oxido-3-oxoxanthen-9-yl)benzoate
Synonyms:
  • disodium 2-(4,5-dibromo-6-oxido-3-oxoxanthen-9-yl)benzoate
  • 4',5'-Dibromofluorescein disodium
  • C.I.Acid Orange 11
  • D and C Orange No.6
  • Fluorescein, 4',5'-dibromo-, disodium salt
  • C.I.Acid Orange 11:C.I.45370
  • DIBROMO FLUORESCEIN DISODIUM SALT
  • Acid Orange 11(CI 45370:1)
CAS:
4372-02-5
MF:
C20H8Br2Na2O5
MW:
534.06206
EINECS:
224-468-2
Mol File:
4372-02-5.mol
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disodium 2-(4,5-dibromo-6-oxido-3-oxoxanthen-9-yl)benzoate Chemical Properties

Melting point:
280-290 °C (decomp)
LogP
4.883 (est)
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disodium 2-(4,5-dibromo-6-oxido-3-oxoxanthen-9-yl)benzoate Usage And Synthesis

Preparation

fluorescent element (C.I.Acid Yellow 73, C.I. 45350) in sodium hydroxide solution 2 brominated, and then, with sodium salting out.

Properties and Applications

red light orange. Soluble in water for orange, with weak fluorescence, soluble in ethanol for orange, with greenish fluorescence, soluble in acetone for pink, with yellow fluorescence, soluble in chaff and four hydrogen furfuryl alcohol. The strong sulfuric acid for titian, diluted into yellow brown, and orange precipitation. In aqueous solution for countries to join sodium hydroxide red. In glycerin and liquid paraffin in good dispersion.

Standard( Silk ) Light Fastness Soaping Persperation Fastness Oxygen bleaching Fastness to seawater
Fading Stain Fading Stain Fading Stain
ISO 1 2

disodium 2-(4,5-dibromo-6-oxido-3-oxoxanthen-9-yl)benzoateSupplier

Guangzhou Isun Pharmaceutical Co., Ltd
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020-39119399 18927568969
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Guangzhou Tomums Life Science Co., Ltd.
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020-31155029 18902330969
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ShangHai Anpel Co, Ltd.
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18501792038; 18501792038
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shanpel@anpel.com.cn
Guangzhou City Haizhu District Zhenghong Co.Ltd.
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020-82550624 13016020539
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Cato Research Chemicals Inc.
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020-81960175-877 18933936954
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tianwen.zhan@cato-chem.com