Cas no 491-67-8 (Baicalein)

Baicalein is a naturally occurring flavonoid compound exhibiting potent antioxidant properties. Its high reactivity index makes it an effective scavenger of free radicals, while its low toxicity profile and bioavailability enable potential applications in pharmaceutical and cosmetic formulations to mitigate oxidative stress and inflammation.
Baicalein structure
Baicalein structure
Product Name:Baicalein
CAS No:491-67-8
MF:C15H10O5
MW:270.2369
MDL:MFCD00150281
CID:37747
PubChem ID:5281605
Update Time:2025-09-15

Baicalein Chemical and Physical Properties

Names and Identifiers

    • Baicalein
    • 5,6,7-TRIHYDROXY-2-PHENYL-(4H)-1-BENZOPYRAN-4-ONE
    • 4H-1-BENZOPYRAN-4-ONE,5,6,7-TRIHYDROXY-2-PHENYL-
    • BAICALEIN4H-1-BENZOPYRAN-4-ONE,5,6,7-TRIHYDROXY-2-PHENYL-,
    • Baicalein std.
    • BAICALEIN(P) PrintBack
    • BAICALEIN(SH)NOW RG GRADE - [Discontinued] PrintBack
    • 4H-1-BENZOPYRAN-4-ONE,5,6,7-TRIHYDROXY-2-PHENYL
    • 5,6,7-trihydroxy-2-phenyl-4H-chromen-4-one
    • Baicalein, monohydrate
    • Baicalin
    • Baicelein
    • Noroxylin
    • 5,6,7-Trihydroxyflavone
    • [ "" ]
    • Biacalein
    • BaiKalein
    • NSC661431
    • 5,6,7-trihydroxy-2-phenylchromen-4-one
    • FXNFHKRTJBSTCS-UHFFFAOYSA-N
    • 4H-1-Benzopyran-4-one, 5,6,7-trihydroxy-2-phenyl-
    • 49QAH60606
    • 5,7-Trihydroxyflavone
    • 5,6,7-trihydroxy-2-phenyl-chromen-4-one
    • Sho-saiko-to
    • SMR000112462
    • Baicalein, 8
    • Baicalein,(S)
    • Baicalein, 14
    • Baicalein, 98%
    • Tocris
    • MLS002473007
    • MLS006011756
    • MLSMR
    • 5,6,7-Trihydroxyflavone, Baicalein
    • MDL: MFCD00150281
    • Inchi: 1S/C15H10O5/c16-9-6-11(8-4-2-1-3-5-8)20-12-7-10(17)14(18)15(19)13(9)12/h1-7,17-19H
    • InChI Key: FXNFHKRTJBSTCS-UHFFFAOYSA-N
    • SMILES: O1C(C2C([H])=C([H])C([H])=C([H])C=2[H])=C([H])C(C2C(=C(C(=C([H])C1=2)O[H])O[H])O[H])=O
    • BRN: 272683

Computed Properties

  • Exact Mass: 270.05300
  • Monoisotopic Mass: 270.053
  • Isotope Atom Count: 0
  • Hydrogen Bond Donor Count: 3
  • Hydrogen Bond Acceptor Count: 5
  • Heavy Atom Count: 20
  • Rotatable Bond Count: 1
  • Complexity: 413
  • Covalently-Bonded Unit Count: 1
  • Defined Atom Stereocenter Count: 0
  • Undefined Atom Stereocenter Count : 0
  • Defined Bond Stereocenter Count: 0
  • Undefined Bond Stereocenter Count: 0
  • XLogP3: 1.7
  • Topological Polar Surface Area: 87
  • Topological Polar Surface Area: 87A^2
  • XLogP4: 1.7
  • Isotope Atom Count: 0
  • Surface Charge: 0
  • Tautomer Count: 20
  • Molecular Weight: 270.24

Experimental Properties

  • Color/Form: Yellow powder
  • Density: 1.3280 (rough estimate)
  • Melting Point: 256-271?°C (lit.)
  • Boiling Point: 650.2°C at 760 mmHg
  • Flash Point: 225.2oC
  • Refractive Index: 1.5000 (estimate)
  • PSA: 90.90000
  • LogP: 2.57680
  • Merck: 942
  • Solubility: Soluble in ethanol, methanol, diethyl ether, acetone, ethyl acetate, hot glacial acetic acid, slightly soluble in chloroform and nitrobenzene, almost insoluble in water, soluble in dilute sodium hydroxide, green brown, yellow and green fluorescence in concentrated sulfuric acid
  • Sensitiveness: Sensitive to light and heat

Baicalein Security Information

  • Symbol: GHS07
  • Prompt:warning
  • Signal Word:Warning
  • Hazard Statement: H315,H319,H335
  • Warning Statement: P261,P305+P351+P338
  • Hazardous Material transportation number:NONH for all modes of transport
  • WGK Germany:3
  • Hazard Category Code: 36/37/38
  • Safety Instruction: S26-S36
  • RTECS:DJ3100898
  • Hazardous Material Identification: Xi
  • Risk Phrases:R36/37/38
  • Storage Condition:4°C, protect from light

Baicalein Customs Data

  • Customs Data:

    China Customs Code:

    2932999099

    Overview:

    2932999099. Other heterocyclic compounds containing only oxygen heteroatoms. VAT:17.0%. Tax refund rate:13.0%. Regulatory conditions:nothing. MFN tariff:6.5%. general tariff:20.0%

    Declaration elements:

    Product Name, component content, use to

    Summary:

    2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Baicalein Pricemore >>

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Baicalein Suppliers

Tiancheng Chemical (Jiangsu) Co., Ltd
Gold Member
Audited Supplier Audited Supplier
(CAS:491-67-8)Baicalein
Order Number:LE932;LE10391
Stock Status:in Stock
Quantity:25KG,200KG,1000KG
Purity:99%
Pricing Information Last Updated:Friday, 20 June 2025 11:39
Price ($):discuss personally
Amadis Chemical Company Limited
Gold Member
Audited Supplier Audited Supplier
(CAS:491-67-8)Baicalein
Order Number:A827663
Stock Status:in Stock
Quantity:100g/25g
Purity:99%
Pricing Information Last Updated:Friday, 30 August 2024 05:26
Price ($):239.0/199.0

Baicalein Spectrogram

1H NMR 300 MHz DMSO
1H NMR
13C NMR
13C NMR
MS-MS
MS-MS
Recommended suppliers
Tiancheng Chemical (Jiangsu) Co., Ltd
(CAS:491-67-8)Baicalein
LE932;LE10391
Purity:99%/99%
Quantity:25KG,200KG,1000KG/25KG,200KG,1000KG
Price ($):Inquiry/Inquiry
Email
Amadis Chemical Company Limited
(CAS:491-67-8)Baicalein
A827663
Purity:99%/99%
Quantity:100g/25g
Price ($):239.0/199.0
Email