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465119

Sigma-Aldrich

Baicalein

98%

Synonym(s):

5,6,7-Trihydroxyflavone

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About This Item

Empirical Formula (Hill Notation):
C15H10O5
CAS Number:
491-67-8
Molecular Weight:
270.24
Beilstein:
272683
MDL number:
MFCD00017459
UNSPSC Code:
12352100
PubChem Substance ID:
24870246
NACRES:
NA.22
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Quality Level

100

Assay

98%

form

solid

mp

256-271 °C (lit.)

functional group

ketone
phenyl

SMILES string

Oc1cc2OC(=CC(=O)c2c(O)c1O)c3ccccc3

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

Gene Information

mouse ... Hexa(15211)
rat ... Alox15(81639) , Alox5(25290)

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General description

Baicalein, a flavonoid, is a xanthine oxidase inhibitor.[1] Anti-inflammatory effects of baicalein in peripheral human leukocytes has been studied.[2]

Application

Baicalein was used in a study to investigate the in vitro quantitative inhibition of lipoxygenase.[3]

Biochem/physiol Actions

The flavonoid component of Nepalese and Sino-Japanese crude drugs.[4][5] Baicalein, a major flavone of Scutellariae baicalensis, inhibits the 12-lipoxygenase (12-LOX) pathway of arachidonic acid metabolism, which inhibits cancer cell proliferation and induces apoptosis.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
MKCX1335
MKCR0734
0000239789
0000195123
MKCS3854

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Naheed Riaz et al.
Phytochemistry, 65(8), 1129-1135 (2004-04-28)
Paeoninol and paeonin C, oligostilbene and monoterpene galactoside, have been isolated from the methanolic extract of the fruits of Paeonia emodi. Their structures have been assigned on the basis of spectral analysis including 1D and 2D NMR techniques. In addition
Wei-Tien Chang et al.
The American journal of Chinese medicine, 41(2), 315-331 (2013-04-04)
Previous studies suggest baicalein, in addition to its antioxidant effects, protects against hypoxia/reoxygenation injury via its pro-oxidant properties. We hypothesize that a brief period of baicalein treatment prior to ischemia/reperfusion (I/R) may trigger preconditioning protection via a mitochondrial pro-oxidant mechanism.
Wujun Dong et al.
Acta pharmaceutica Sinica. B, 10(8), 1576-1585 (2020-09-24)
Efficient mucosal delivery remains a major challenge for the reason of the respiratory tract mucus act as a formidable barrier to nanocarriers by trapping and clearing foreign particulates. The surface property of nanoparticles determines their retention and penetration ability within
Zaijun Zhang et al.
Journal of agricultural and food chemistry, 60(33), 8171-8182 (2012-07-31)
Baicalein, one of the major flavonoids found in Scutellaria baicalensis Georgi, displays neuroprotective effects on experimental models of Parkinson's disease (PD) in vitro and in vivo. Although the antioxidative and/or anti-inflammatory activity of baicalein likely contributes to these neuroprotective effects
Ana Roseli S Ribeiro et al.
Chemico-biological interactions, 260, 33-41 (2016-10-27)
Many flavonoids have been shown to present good results for the treatment of gastric ulcers. Baicalein, a bioactive flavonoid derived from the Scutellaria baicalensis Georgi root, possesses several biological effects, such as anti-inflammatory and antioxidant. This study was conducted to
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Questions

1–3 of 3 Questions  

  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  3. At what percentage of DMso baicalein and naringin will be dissolved?

    1 answer

    1. Baicalein and can be soluble in 20mg/ml DMSO. Naringin can be soluble in 10 mg/ml neat DMSO.

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