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CAS No 21637-25-2 , Isoquercitrin

  • Name: Isoquercitrin
  • Synonyms: 2-(3,4-Hihydroxyphenyl)-3-(beta-D-glucofuranosyloxy)-5,7-dihydroxy-4H-1-benzopyran-4-one;Isoquercitrin;Quercetin 3-beta-D-glucoside;
  • CAS Registry Number:
  • Transport: UN 2811
  • Density: 1.87g/cm3
  • Refractive index: 1.803
  • EINECS: 244-488-5
  • Molecular Weight: 464.38
  • InChI: InChI=1/C21H20O12/c22-6-12(27)19-16(29)17(30)21(32-19)33-20-15(28)14-11(26)4-8(23)5-13(14)31-18(20)7-1-2-9(24)10(25)3-7/h1-5,12,16-17,19,21-27,29-30H,6H2/t12-,16-,17-,19-,21+/m1/s1
  • Molecular Formula: C21H20O12
  • Molecular Structure:CAS No:21637-25-2 Isoquercitrin
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21637-25-2 Isoquercitrin

  • Isoquercitrin Synonym: 7-dihydroxy-;3,3’,4’,5,7-pentahydroxy-flavon3-beta-d-glucofuranoside;3,3’,4’,5,7-pentahydroxyflavone3-beta-d-glucofuranoside;4h-1-benzopyran-4-one,2-(3,4-dihydroxyphenyl)-3-(beta-d-glucofuranosyloxy)-5;ISOQUERCETIN;ISOQUERC...
  • Min. Order: 500
  • China Wuhan Yuancheng Group [Manufacturer, Trading Company]
  • Tel: 86-027-50756153
  • Address: Zhongshan Road Wuhan,HubeiChina
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21637-25-2 ISOQUERCITRIN

  • Germany ABCR GmbH & Co KG [Manufacturer]
  • Tel: +49 721 95061-0
  • Fax: +49 721 95061-80
  • Address: Im Schlehert 10
    76187 Karlsruhe
    Germany ,Germany
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21637-25-2 2-(3,4-dihydroxyphenyl)-3-(β-D-glucofuranosyloxy)-5,7-dihydroxy-4H-1-benzopyran-4-one

  • China Taiyuan RHF CO., ltd. [Manufacturers]
  • Tel: 0351-7436719
  • Fax: +86-351-7436719
  • Address: Shuangta South Alley 46,2-1, YingZe Area,Taiyuan, ShanXi ,ShanXiChina
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21637-25-2 ISOQUERCITRIN

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21637-25-2 Isoquercitrin

  • China Kouting Chemical Co.,Ltd [Importer/Exporter]
  • Tel: +86-(21)-58116473
  • Fax: +86-(21)-61094103
  • Address: Hunan Road, Pudong New District, Shanghai, Shanghai 201318, shanghai,shanghaiChina
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21637-25-2 Isoquercitrin

  • Germany AppliChem mbH []
  • Tel: +49 6151 93 57 0
  • Fax: +49 6151 93 57 11
  • Address: Ottoweg 4 D-64291 Darmstadt ,Germany
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21637-25-2 ISOQUERCITRIN

  • Czech Republic ALCHIMICA [Manufacturer]
  • Tel: +420 220 515541
  • Fax: +420 220 515541
  • Address: ALCHIMICA
    Ovalova 12
    160 00 Praha 6
    Czech Republic ,Czech Republic
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21637-25-2 ISOQUERCITRIN

  • Germany AppliChem GmbH [Manufacturer]
  • Tel: +49 6151 93 57 0
  • Fax: +49 6151 93 57 11
  • Address: AppliChem GmbH
    Ottoweg 4
    64291 Darmstadt
    Germany ,Germany
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21637-25-2 Isoquercitrin

  • China TIANJINHUABIAO LTD [Agent]
  • Tel: 86-22-26358246
  • Address: , Tiantai Road, Hebei District, ,China
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21637-25-2 2-(3,4-dihydroxyphenyl)-3-(β-D-glucofuranosyloxy)-5,7-dihydroxy-4H-1-benzopyran-4-one

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References of Isoquercitrin
Title: Isoquercitrin
CAS Registry Number: 21637-25-2
CAS Name: 2-(3,4-Dihydroxyphenyl)-3-(b-D-glucofuranosyloxy)-5,7-dihydroxy-4H-1-benzopyran-4-one
Synonyms: 3,3¢,4¢,5,7-pentahydroxyflavone-3-glucoside; quercetin-3-glucoside; isotrifoliin; trifoliin
Molecular Formula: C21H20O12
Molecular Weight: 464.38
Percent Composition: C 54.31%, H 4.34%, O 41.34%
Literature References: From flowers of Gossypium herbaceum L., Malvaceae: Perkin, J. Chem. Soc. 95, 2181 (1909); from flowers of Aesculus hippocastanum L., Hippocastanaceae: H?rhammer, Wagner, Arch. Pharm. 290, 224 (1957); from Tropaeolum majus L., Tropaeolaceae: Delaveau, Compt. Rend. 252, 1510 (1961); from Arnica montana L., Compositae: Friedrick, Naturwissenschaften 49, 541 (1962). Structure: Attree, Perkin, J. Chem. Soc. 1927, 234. Identity with trifoliin and isotrifoliin: Hattori et al., J. Chem. Soc. Jpn. 58, 844 (1937), C.A. 32, 219c (1938). Synthesis: Ice, Wender, J. Am. Chem. Soc. 74, 4606 (1952); eidem, US 2727890 (1955 to the USAEC).
Properties: Yellow needles from water, mp 225-227°. uv max: 257, 369 nm. Practically insol in cold but sparingly sol in boiling water. Sol in alkaline solns with a deep yellow tint.
Melting point: mp 225-227°
Absorption maximum: uv max: 257, 369 nm