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CAS No 520-36-5 , 5,7-dihydroxy-2-(4-hydroxyphenyl)chromen-4-one Search by region : India

  • Name: 5,7-dihydroxy-2-(4-hydroxyphenyl)chromen-4-one
  • Synonyms: C.I. Natural Yellow 1; Versulin;Chamomile; Apigenol; 4',5,7-Trihydroxyflavone; 520-36-5;5,7-dihydroxy-2-(4-hydroxyphenyl)chromen-4-one; Apigenine; Spigenin;
  • CAS Registry Number:
  • Transport: OTH
  • Density: 1.548 g/cm3
  • Refractive index: 1.732
  • Water Solubility: DMSO: 27 mg/mL
  • Safety Statements: R36/37/38,
  • Hazard Symbols: Xi:Irritant;
  • EINECS: 208-292-3
  • Molecular Weight: 270.2369
  • InchiKey: KZNIFHPLKGYRTM-UHFFFAOYSA-N
  • InChI: InChI=1S/C15H10O5/c16-9-3-1-8(2-4-9)13-7-12(19)15-11(18)5-10(17)6-14(15)
    20-13/h1-7,16-18H
  • Risk Statements: S26,S36,
  • Molecular Formula: C15H10O5
  • Molecular Structure:CAS No:520-36-5 5,7-dihydroxy-2-(4-hydroxyphenyl)chromen-4-one

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520-36-5 Apigenin

  • India Manus Aktteva null
  • Tel: +91-(79)-65123395
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  • Address: 303, 3rd Floor, Royale Manor, Law Garden, Dhulia Kot Road, Ellisbridge, Ahmedabad, Gujarat 380006, null,nullIndia
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520-36-5 apigenin

  • India S. Nihar Exports [Distributor/Wholesaler]
  • Tel: (+91-22) 2208 5632/2208 5530/2201 2467/2207 4594
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  • Address: 85, PRINCESS STREET, S.G.MARG,MUMBAI - 400 002. (INDIA) MUMBAI,MUMBAIIndia
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520-36-5 Apigenin

  • Apigenin
  • India SASTRA Deemed University [Manufacturer]
  • Tel: +91 4362-264346
  • Fax: +91 4362-264346
  • Address: Centre for advanced research in Indian System of Medicine, Thanjavur- 613 402, Thirumalaisamudram, Tamil nadu, India. 214001 JiangsuINDIA Jiangsu,nullIndia
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520-36-5 Apigenin

  • Apigenin, 95%-98%
  • India Indo Phytochem Pharmaceuticals [Manufacturer]
  • Tel: 0091-1702-238348
  • Fax: 0091-1702-238347
  • Address: Near moginand, kala-amb nahan road, Kala-amb (173030), Distt. sirmour, Himachal Pradesh, India173030 Kala-amb INDIA Kala-amb,nullIndia
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520-36-5 APIGENIN

  • India Alchem International Limited [Manufacturer]
  • Tel: +91 129 4266000
  • Fax: +91 129 2307192
  • Address: Alchem International Limited
    301, Avalon Apartments
    M.G. Road, Sultanpur
    New Delhi-110 030 null,nullIndia
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References of 5,7-dihydroxy-2-(4-hydroxyphenyl)chromen-4-one
Title: Apigenin
CAS Registry Number: 520-36-5
CAS Name: 5,7-Dihydroxy-2-(4-hydroxyphenyl)-4H-1-benzopyran-4-one
Synonyms: 4¢,5,7-trihydroxyflavone; 2-(p-hydroxyphenyl)-5,7-dihydroxychromone; pelargidenon 1449
Molecular Formula: C15H10O5
Molecular Weight: 270.24
Percent Composition: C 66.67%, H 3.73%, O 29.60%
Literature References: The aglucon of apiin and of apigenin-7-glucoside. From apiin by boiling with acids, from apigenin-7-glucoside by enzymatic hydrolysis with emulsin or by boiling with 15% H2SO4. Isoln and structure: Czajkowski et al., Ber. 33, 1992 (1900); Schmid, Waschkau, Monatsh. Chem. 49, 83 (1928); Baker et al., J. Chem. Soc. 1963, 1477. Synthesis: Hutchins, Wheeler, ibid. 1939, 91; Farooq et al., Arch. Pharm. 292, 792 (1959).
Properties: Yellow needles from aqueous pyridine, mp 345-350°. uv max (ethanol): 269, 340 nm (e 18,800; 20,900). Practically insoluble in water; moderately sol in hot alcohol. Sol in dil KOH with intense yellow color.
Melting point: mp 345-350°
Absorption maximum: uv max (ethanol): 269, 340 nm (e 18,800; 20,900)
Use: Has been used to dye Cr mordanted wool yellow. The color is fast to soap.