Physcion
CAS 521-61-9
EC 208-315-7
Formula C16H12O5
MW 284.26 g/mol
Pigments & Colorants Personal Care & CosmeticsTextile, Leather & PaperPrinting & Packaging UV Protection & StabilizationAntioxidant & StabilizerSurface Modification & Wetting
Description
Physcion (CAS 521-61-9), also known as parietin, physcione, and rheochrysidin, is a naturally occurring anthraquinone pigment with the molecular formula C16H12O5. It carries EC number 208-315-7 and has no assigned E-code. It is classified under HS code 29146990 for customs and trade purposes.
In personal care formulations, physcion functions as a UV absorber and antioxidant, intercepting free radicals and attenuating UV radiation to protect skin and formulation integrity. In textile and printing applications, it serves as an organic colorant and surface-active agent, contributing to substrate adhesion and colorfastness through its planar aromatic structure.
Physcion is supplied as a neat chemical substance and is subject to REACH registration requirements for EU import and use. Procurement teams should confirm supplier compliance documentation, including safety data sheets aligned with EU GHS standards. Standard packaging formats vary by supplier; buyers should request specifications for batch size and purity grade.
In personal care formulations, physcion functions as a UV absorber and antioxidant, intercepting free radicals and attenuating UV radiation to protect skin and formulation integrity. In textile and printing applications, it serves as an organic colorant and surface-active agent, contributing to substrate adhesion and colorfastness through its planar aromatic structure.
Physcion is supplied as a neat chemical substance and is subject to REACH registration requirements for EU import and use. Procurement teams should confirm supplier compliance documentation, including safety data sheets aligned with EU GHS standards. Standard packaging formats vary by supplier; buyers should request specifications for batch size and purity grade.
Physical Properties
| 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) |
Safety & Handling (Learn More)
Warning GHS07
H
H315H319H335
P
P261P264P271P280P319P321P405P501P264+P265P302+P352P304+P340P332+P317P337+P317P362+P364P403+P233P305+P351+P338
Trade & Regulatory
| HS Code | 29146990 |
| Storage Class | 11 - Combustible Solids |
| WGK (Germany) | 3 |
Other Names
1,8-dihydroxy-3-methoxy-6-methylanthracene-9,10-dionePhyscioneparietinRheochrysidin6-O-Methylemodin
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