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21967-41-9

Basic Information
CAS No.: 21967-41-9
Name: Baicalin
Molecular Structure:
Molecular Structure of 21967-41-9 (Baicalin)
Formula: C21H18O11
Molecular Weight: 446.36
Synonyms: (2S,3S,4S,5R,6S)-6-(5,6-dihydroxy-4-oxo-2-phenyl-chromen-7-yl)oxy-3,4,5-trihydroxy-oxane-2-carboxylic acid;5,6-dihydroxy-4-oxo-2-phenyl-4H-1-benzopyran-7-yl beta-D-glucopyranosiduronic acid;Baicalein 7-O-glucuronide;7-D-glucuronic acid-5,6-dihydroxyflavone;TJN-151;baicalin, Baical Skullcap Root extract;
EINECS: 606-866-1
Density: 1.737 g/cm3
Melting Point: 231-233 °C(lit.)
Boiling Point: 836.6 °C at 760 mmHg
Flash Point: 297.2 °C
Solubility:
Appearance: Yellow powder
Hazard Symbols: IrritantXi
Risk Codes: 36/37/38
Safety: 26-36
Transport Information:
PSA: 187.12000
LogP: 0.14220
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Chemistry

The Molecular Structure of Baicalin (CAS NO.21967-41-9):

Empirical Formula: C21H18O11
Molecular Weight: 446.361
Nominal Mass: 446 Da 
IUPAC Name: (2S,3S,4S,5R,6S)-6-(5,6-dihydroxy-4-oxo-2-phenylchromen-7-yl)oxy-3,4,5-trihydroxyoxane-2-carboxylic acid  
Average Mass: 446.361 Da
Monoisotopic Mass: 446.084911 Da 
Index of Refraction: 1.739
Molar Refractivity: 103.55 cm3
Molar Volume: 256.8 cm3
Surface Tension: 103.3 dyne/cm
Density: 1.737 g/cm3
Flash Point: 297.2 °C
Enthalpy of Vaporization: 127.43 kJ/mol
Boiling Point: 836.6 °C at 760 mmHg
Vapour Pressure: 1.07E-29 mmHg at 25°C 
Melting Point: 202-205°C
Product Categories: Tri-substituted Flavones;Biochemistry;Flavonoids;Glycosides;Sugars;Natural Plant Extract;The group of Scutellaria;Asymmetric Synthesis;Chiral Building Blocks;Complex Molecules
Synonyms: 7-D-Glucuronic acid-5,6-dihydroxyflavone ; beta-D-Glucopyranosiduronic acid, 5,6-dihydroxy-4-oxo-2-phenyl-4H-1-benzopyran-7-yl  

Uses

 Baicalin (CAS NO.21967-41-9) is a flavonoid that affects the GABA receptors. It is found in scutellaria lateriflora, also known as blue skullcap.

Safety Profile

Hazard Codes: IrritantXi
Risk Statements: 36/37/38 
R36/37/38: Irritating to eyes, respiratory system and skin
Safety Statements: 26-36 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
S36: Wear suitable protective clothing
WGK Germany: 3
RTECS: LZ5776910