Physcion , ≥98.0%（HPLC) , 521-61-9

Synonym(s):
Parietin;Rheochrysidin;Emodin-3-methyl ether;1,8-Dihydroxy-3-methoxy-6-methylanthraquinone;6-O-Methylemodin

CAS NO.：521-61-9

Empirical Formula: C16H12O5

Molecular Weight: 284.26

MDL number: MFCD00017374

EINECS: 208-315-7

PRODUCT Properties

• Melting point: 196-206°C
• Boiling point: 560.5±50.0 °C(Predicted)
• Density: 1.448±0.06 g/cm3(Predicted)
• storage temp.: -20°C Freezer, Under Inert Atmosphere
• solubility: Chloroform (Slightly, Heated), Ethyl Acetate (Slightly, Heated), Methanol (Slightly)
• form: Solid
• pka: 6.23±0.20(Predicted)
• color: Yellow to Dark Yellow to Dark Orange
• BRN: 6770499
• Stability: Hygroscopic
• Major Application: food and beverages
• InChI: InChI=1S/C16H12O5/c1-7-3-9-13(11(17)4-7)16(20)14-10(15(9)19)5-8(21-2)6-12(14)18/h3-6,17-18H,1-2H3
• InChIKey: FFWOKTFYGVYKIR-UHFFFAOYSA-N
• SMILES: C1(O)=C2C(C(=O)C3=C(C2=O)C(O)=CC(C)=C3)=CC(OC)=C1
• LogP: 5.078 (est)
• CAS DataBase Reference: 521-61-9(CAS DataBase Reference)

Description and Uses

A natural anthraquinone derivative, on the infection process of Blumeria graminis on wheat. Physcion is one of the important active ingredients of ethanol extract from the roots of Chinese rhubarb (Rheum officinale) for controlling powdery mildew.

Safety

• Symbol(GHS): GHS07
• Signal word: Warning
• Hazard statements: H302
• Precautionary statements: P264-P270-P301+P312-P501
• Hazard Codes: Xi
• Risk Statements: 36/37/38
• Safety Statements: 26
• WGK Germany: 3
• RTECS: CB6720000
• F: 10
• HS Code: 29146990
• Storage Class: 11 - Combustible Solids
• Hazard Classifications: Acute Tox. 4 Oral