Pigments & Colorants
REACH
Physcion
CAS Number
521-61-9
EC Number
208-315-7
What is Physcion?
Physcion (CAS 521-61-9), also known as Emodin 3-methyl ether, is a naturally derived anthraquinone pigment isolated from lichens, rhubarb, and related botanical sources.
Where is Physcion used?
- Cosmetics and personal care: colorant and antioxidant for botanical-origin pigmentation in color cosmetics and skin-conditioning products
- Textile and leather: natural dye precursor
- Printing and packaging: natural ink systems and specialty colorant blends for sustainable lines
- Surface coatings: UV-stabilizing additive where photodegradation resistance is required
- Its anthraquinone chromophore delivers yellow-orange hues with reasonable substrate affinity.
Commercial specifications
- Purity typically 95% to 98%+, confirmed by HPLC
- Research and specialty chemical grades
- Supply volumes suit pilot-scale and specialty formulation applications
Other Names (Synonyms)
Physcione|Emodin 3-methyl ether|1,8-dihydroxy-3-methoxy-6-methylanthracene-9,10-dione|1,8-Dihydroxy-3-methoxy-6-methyl-9,10-anthracenedione|Parienin|Emodin monomethyl ether|H6PT94IV61|9,10-Anthracenedione, 1,8-dihydroxy-3-methoxy-6-methyl-
What are the physical properties of Physcion?
Melting Point 19634-19677 °C
Boiling Point 560.5±50.0 °C(Predicted)
Density 1.448±0.06 g/cm3(Predicted)
Color Yellow to Dark Yellow to Dark Orange
Form neat
Log P 5.078 (est)
How is Physcion classified and handled safely? Learn More
Warning
GHS07· Irritant
Hazard Statements
H315 Causes skin irritation
H319 Causes serious eye irritation
H335 May cause respiratory irritation
Precautionary Statements
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash … thoroughly after handling.
P271 Use only outdoors or in a well-ventilated area.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
Which trade and regulatory codes apply to Physcion?
HS Code 29146990
Storage Class 11 - Combustible Solids
WGK (Germany) 3