CAS 491-67-8|Baicalein

Introduction:Basic information about CAS 491-67-8|Baicalein, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.
Common NameBaicalein
CAS Number491-67-8Molecular Weight270.237
Density1.5±0.1 g/cm3Boiling Point575.9±50.0 °C at 760 mmHg
Molecular FormulaC15H10O5Melting Point256-271 °C(lit.)
MSDSChineseUSAFlash Point225.3±23.6 °C
Symbol
GHS07
Signal WordWarning

Names

Namebaicalein
SynonymMore Synonyms

Baicalein BiologicalActivity

DescriptionBaicalein (5,6,7-Trihydroxyflavone) is a xanthine oxidase inhibitor with an IC50 value of 3.12 mM.
Related CatalogSignaling Pathways >>Metabolic Enzyme/Protease >>Xanthine OxidaseResearch Areas >>CancerNatural Products >>Flavonoids
Target

IC50: 3.12 mM (xanthine oxidase)[1]

In VitroBaicalein suppresses mitogen induced T cell proliferation and cytokine secretion in vitro. Pre-treatment with baicalein significantly suppresses Con A or anti-CD3/CD28 mAb induced proliferation as well as cytokine secretion at 25 μM. Baicalein treatment induces DNA binding of NF-κB but inhibits thioredoxin activity in the nuclear compartment[2]. Baicalein suppresses proliferation, migration, and invasion of MDA-MB-231 cells in a time- and dose-dependent manner. Baicalein significantly decreases the expression of SATB1 in MDA-MB-231 cells. Baicalein also downregulates the expression of Wnt1 and β-catenin proteins and transcription level of Wnt/β-catenin-targeted genes[3].
In VivoBaicalein suppresses induction of graft versus host disease but does not inhibit homeostatic proliferation of T-cells in mice. This observation clearly shows potent anti-inflammatory activity of baicalein in vivo[2]. Rats treated with baicalein are protected against an increase in heart to body weight ratio, plasma level of brain natriuretic peptides, intraventricular septum thickness, myocardial collagen volume of left ventricle (all P<0.05, respectively). The antifibrotic effects of baicalein are further illustrated by the suppressed expression of left ventricle pro-collagens I and III accompanied by the decreased expression of 12-lipoxygenase, and by reduced expression and activity of matrix metallopeptidase 9 and extracellular signal-regulated kinases. Baicalein can inhibit cardiac fibrosis in hypertensive rats[4].
Cell AssayMTT assay is conducted to evaluate the effect of baicalein on proliferation of breast cancer cells. MDA-MB-231 cells are routinely digested, collected, and then seeded in 96-well plates at a density of 8×103 cells/well. After incubation for 12-24 hours, cells are treated with 0, 20, 40, 60, 80, 100, and 120 μM baicalein according to their experimental grouping and then incubated at 37°C for 24, 48, and 72 hours[3].
Animal AdminRats: Baicalein is suspended in 1% methylcellulose. Rats are treated with baicalein suspension via oral garvage. SHR and WKY rats are divided into 4 groups (n=8 per group): 12-week treatment with high-dose (200 mg/kg/day) or low-dose (50 mg/kg/day) group; and 4-week treatment with high-dose or low-dose group. The 12-week and 4-week negative control groups of SHR and WKY rats (n=8 per group) receive vehicle while positive control groups (Val group, n=8 per group) receive valsartan (20 mg/kg/day) for comparison[4]. Mice: To study the in vivo anti-inflammatory efficacy of baicalein, graft-versus-host disease (GVHD) model is used. Splenic lymphocytes from C57BL/6 mice are incubated with baicalein in vitro (25 μM, 4h) and adoptively transferred to immune-compromised Balb/c mice[2].
References

[1]. Shieh DE,et al. Antioxidant and free radical scavenging effects of baicalein, baicalin and wogonin. Anticancer Res. 2000 Sep-Oct;20(5A):2861-5.

[2]. Patwardhan RS, et al. Baicalein exhibits anti-inflammatory effects via inhibition of NF-κB transactivation. Biochem Pharmacol. 2016 May 15;108:75-89.

[3]. Ma X, et al. Baicalein suppresses metastasis of breast cancer cells by inhibiting EMT via downregulation of SATB1 and Wnt/β-catenin pathway.Drug Des Devel Ther. 2016 Apr 18;10:1419-41.

[4]. Kong EK, et al. A novel anti-fibrotic agent, baicalein, for the treatment of myocardial fibrosis in spontaneously hypertensiverats. Eur J Pharmacol. 2011 May 11;658(2-3):175-81.

Chemical & Physical Properties

Density1.5±0.1 g/cm3
Boiling Point575.9±50.0 °C at 760 mmHg
Melting Point256-271 °C(lit.)
Molecular FormulaC15H10O5
Molecular Weight270.237
Flash Point225.3±23.6 °C
Exact Mass270.052826
PSA90.90000
LogP3.31
Vapour Pressure0.0±1.7 mmHg at 25°C
Index of Refraction1.732
InChIKeyFXNFHKRTJBSTCS-UHFFFAOYSA-N
SMILESO=c1cc(-c2ccccc2)oc2cc(O)c(O)c(O)c12
Storage condition2-8°C

Safety Information

Symbol
GHS07
Signal WordWarning
Hazard StatementsH315-H319-H335
Precautionary StatementsP261-P305 + P351 + P338
Personal Protective Equipmentdust mask type N95 (US);Eyeshields;Gloves
Hazard CodesXi: Irritant;
Risk PhrasesR36/37/38
Safety PhrasesS26-S36
RIDADRNONH for all modes of transport
WGK Germany3
HS Code2932999099

Customs

HS Code2932999099
Summary2932999099. 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%

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Synonyms

4H-1-BENZOPYRAN-4-ONE,5,6,7-TRIHYDROXY-2-PHENYL
Noroxylin
5,6,7-TRIHYDROXYFLAVONE
Baicalein
MFCD00017459
5,6,7-trihydroxy-2-phenyl-4H-chromen-4-one
Baicelein
Baicalin
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