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Name	Magnolol	EINECS	610-903-7
CAS No.	528-43-8	Density	1.107 g/cm³
PSA	40.46000	LogP	4.22180
Solubility	N/A	Melting Point	99 - 101oC
Formula	C₁₈H₁₈O₂	Boiling Point	401 °C at 760 mmHg
Molecular Weight	266.34	Flash Point	184.5 °C
Transport Information	UN 3077	Appearance	A bioactive compound found in the bark of the Houpu magnolia.
Safety	26-39-61	Risk Codes	37/38-41-51/53
Molecular Structure		Hazard Symbols	N
Synonyms	2,2'-Bichavicol(6CI);2,2'-Biphenyldiol, 5,5'-diallyl- (8CI);[1,1'-Biphenyl]-2,2'-diol,5,5'-di-2-propenyl- (9CI);	Article Data	16

Magnolol Synthetic route

: 5,5'-Diallyl-2,2'-bis(methoxymethoxy)biphenyl

: 528-43-8
Magnolol

Conditions

Conditions	Yield
With chloro-trimethyl-silane In methanol at 0 - 25℃; for 1h;	90%
With chloro-trimethyl-silane In methanol at 0 - 25℃; for 1h;	90%
With hydrogenchloride In tetrahydrofuran; isopropyl alcohol for 18h; Ambient temperature;	70%

: 73429-23-9
2,2′-di(allyloxy)-biphenyl

: 528-43-8
Magnolol

Conditions

Conditions	Yield
With antimonypentachloride In dichloromethane at -78℃;	81%

: 501-92-8
4-(prop-2-enyl)phenol

: 528-43-8
Magnolol

Conditions

Conditions	Yield
With aluminium trichloride; 2,3-dicyano-5,6-dichloro-p-benzoquinone In nitromethane for 1.5h; Ambient temperature;	77%
With air; ethanol; iron(III) chloride

: 68592-16-5
5,5'-diallyl-2,2'-dimethoxy-1,1'-biphenyl

: 528-43-8
Magnolol

Conditions

Conditions	Yield
With boron tribromide In dichloromethane at -78℃; for 1h;	75%
With aluminum (III) chloride; thiourea In 1,2-dichloro-ethane at 50℃;
With aluminum (III) chloride; thiourea In 1,2-dichloro-ethane at 50℃;

: 501-92-8
4-(prop-2-enyl)phenol

A: 528-43-8
Magnolol

B: isomagnolol

Conditions

Conditions	Yield
With horseradish peroxidase type-1; dihydrogen peroxide In methanol at 20℃; for 0.3h; pH=6.0;	A 28% B 5%

: 501-92-8
4-(prop-2-enyl)phenol

A: 528-43-8
Magnolol

B: 139726-29-7
dunnianol

C: isomagnolol

Conditions

Conditions	Yield
With air; iron(III) chloride In ethanol for 48h;	A 15% B 2% C 1%

: 501-92-8
4-(prop-2-enyl)phenol

A: 528-43-8
Magnolol

B: 139726-29-7
dunnianol

C: 8,9b-diallyl-4a,9b-dihydro-4H-dibenzofuran-3-one

D: isomagnolol

Conditions

Conditions	Yield
With sodium carbonate; potassium hexacyanoferrate(III) at 0℃; for 3h; Further byproducts given;	A 8% B 11% C 12% D 5%

: 501-92-8
4-(prop-2-enyl)phenol

A: 528-43-8
Magnolol

B: 139726-29-7
dunnianol

C: 8,9b-diallyl-4a,9b-dihydro-4H-dibenzofuran-3-one

D: 8,9b-diallyl-2-(4-allyl-phenoxy)-4a,9b-dihydro-4H-dibenzofuran-3-one

Conditions

Conditions	Yield
With sodium carbonate; potassium hexacyanoferrate(III) at 0℃; for 3h; Further byproducts given;	A 8% B 11% C 12% D 5%

: 501-92-8
4-(prop-2-enyl)phenol

A: 528-43-8
Magnolol

B: 139726-29-7
dunnianol

C: 8,9b-diallyl-4a,9b-dihydro-4H-dibenzofuran-3-one

D: 5,5',5'',5'''-tetraallyl-[1,3';1',1'';3'',1''']quaterphenyl-2,2',2'',2'''-tetraol

Conditions

Conditions	Yield
With sodium carbonate; potassium hexacyanoferrate(III) at 0℃; for 3h; Further byproducts given;	A 8% B 11% C 12% D 4%

: 917-64-6
methyl magnesium iodide

: 68592-16-5
5,5'-diallyl-2,2'-dimethoxy-1,1'-biphenyl

: 528-43-8
Magnolol

Conditions

Conditions	Yield
at 180℃;

Magnolol Chemical Properties

Molecular Structure of 5,5'-Diallyl-2,2'-biphenyldiol (CAS NO.528-43-8):

IUPAC Name: 2-(2-hydroxy-5-prop-2-enylphenyl)-4-prop-2-enylphenol
Empirical Formula: C₁₈H₁₈O₂
Molecular Weight: 266.3343
H bond acceptors: 2
H bond donors: 2
Freely Rotating Bonds: 7
Polar Surface Area: 18.46Å²
Index of Refraction: 1.601
Molar Refractivity: 82.42 cm³
Molar Volume: 240.4 cm³
Surface Tension: 44.6 dyne/cm
Density: 1.107 g/cm³
Flash Point: 184.5 °C
Enthalpy of Vaporization: 67.74 kJ/mol
Boiling Point: 401 °C at 760 mmHg
Vapour Pressure: 5.25E-07 mmHg at 25°C
Storage temp: 2-8°C
Merck: 13,5721
InChI
InChI=1/C18H18O2/c1-3-5-13-7-9-17(19)15(11-13)16-12-14(6-4-2)8-10-18(16)20/h3-4,7-12,19-20H,1-2,5-6H2
Smiles
c1(c2c(ccc(c2)CC=C)O)c(ccc(c1)CC=C)O
Product Categories: Aromatic Phenols; The group of Magnolia; Antifungal; Nutritional Ingredients

Magnolol Toxicity Data With Reference

orl-mus LD50:2200 mg/kg

BRXXAA British Patent Document. (U.S. Patent Office, Science Library, 2021 Jefferson Davis Highway, Arlington, VA 22202) #5135746 .

Magnolol Safety Profile

Moderately toxic by ingestion. When heated to decomposition it emits acrid smoke and irritating vapors.
Hazard Codes: Dangerous N
Risk Statements: 37/38-41-51/53
R37/38:Irritating to respiratory system and skin.
R41:Risk of serious damage to the eyes.
R51/53:Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
Safety Statements: 26-39-61
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S39:Wear eye / face protection.
S61:Avoid release to the environment. Refer to special instructions / safety data sheets.
RIDADR: UN 3077
RTECS: DV5105500

Magnolol Specification

5,5'-Diallyl-2,2'-biphenyldiol , with CAS number of 528-43-8, can be called 2,2'-Bichavicol(6CI) ; [1,1'-Biphenyl]-2,2'-diol,5,5'-di-2-propenyl- (9CI) ; 2,2'-Biphenyldiol, 5,5'-diallyl- (8CI) . 5,5'-Diallyl-2,2'-biphenyldiol (CAS NO.528-43-8) can be used in Pharmacological.

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