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521-61-9

Basic Information
CAS No.: 521-61-9
Name: Physcione
Article Data: 40
Cas Database
Molecular Structure:
Molecular Structure of 521-61-9 (Physcione)
Formula: C16H12O5
Molecular Weight: 284.268
Synonyms: Anthraquinone,1,8-dihydroxy-3-methoxy-6-methyl- (8CI);Chrysophanic acid, 6-methoxy- (4CI);1,8-Dihydroxy-3-methyl-6-methoxyanthraquinone;6-O-Methylemodin;Emodin3-methyl ether;NSC 251670;Parietin;Rheochrysidin;
EINECS: 208-315-7
Density: 1.448 g/cm3
Melting Point: 196-206 °C
Boiling Point: 560.5 °C at 760 mmHg
Flash Point: 215.4 °C
Solubility: N/A
Appearance: white powder
Hazard Symbols: IrritantXi
Risk Codes: 36/37/38
Safety: 26
Transport Information: N/A
PSA: 83.83000
LogP: 2.19020
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Chemistry

Molecular Structure of Physcione (CAS NO.521-61-9):

Molecular Formula: C16H12O5
Molecular Weight: 284.2635
IUPAC Name: 1,8-Dihydroxy-3-methoxy-6-methylanthracene-9,10-dione
Synonyms of Physcione (CAS NO.521-61-9): 1,8-Dihydroxy-3-methoxy-6-methyl-9,10-anthracenedione ; 1,8-Dihydroxy-3-methoxy-6-methylanthraquinone ; 1,8-Dihydroxy-3-methyl-6-methoxy-9,10-anthraquinone ; 4-08-00-03575 (Beilstein Handbook Reference) ; BRN 1915778 ; CCRIS 4399 ; EINECS 208-315-7 ; Emodin 3-methyl ether ; NSC 251670 ; Parietin ; Physcion ; Rheochrysidin ; 9,10-Anthracenedione, 1,8-dihydroxy-3-methoxy-6-methyl- (9CI) ; Anthraquinone, 1,8-dihydroxy-3-methoxy-6-methyl-
CAS NO: 521-61-9
Classification Code: Mutation data
Melting point: 196-206°C
Polar Surface Area: 83.83 Å2
Index of Refraction: 1.677
Molar Refractivity: 73.93 cm3
Molar Volume: 196.2 cm3
Surface Tension: 67.3 dyne/cm
Density of Physcione (CAS NO.521-61-9): 1.448 g/cm3
Flash Point: 215.4 °C
Enthalpy of Vaporization: 87.45 kJ/mol
Boiling Point: 560.5 °C at 760 mmHg
Vapour Pressure: 3.6E-13 mmHg at 25°C

Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LD50 intraperitoneal 10mg/kg (10mg/kg) GASTROINTESTINAL: OTHER CHANGES Journal of Agricultural and Food Chemistry. Vol. 27, Pg. 1342, 1979.

Safety Profile

Hazard Codes of Physcione (CAS NO.521-61-9): IrritantXi
Risk Statements: 36/37/38
R36/37/38: Irritating to eyes, respiratory system and skin.
Safety Statements: 26 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
WGK Germany: 3
RTECS: CB6720000
F: 10