Physcion

Name: Physcion
Brand: Vaqora Chemicals
SKU: VQ-032829

About Physcion

Physcion is an impurity of Diacerein carrying the CAS registry number 521-61-9. The compound has the formula C16H12O5, corresponding to a molecular weight of 284.26 g/mol. Its systematic (IUPAC) name is 1,8-dihydroxy-3-methoxy-6-methylanthracene-9,10-dione. It is also known as Physcione or Rheochrysidin.

The product is provided as a solid. Keep the vial tightly closed, protected from light and humidity, at the temperature stated on the Certificate of Analysis. The GHS classification uses the signal word “Warning”, so appropriate gloves, eye protection and ventilation are recommended.

As a characterised impurity of Diacerein, it is used for analytical method development, method validation (AMV) and routine quality-control testing, and it supports ANDA and DMF regulatory filings. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

We offer Physcion in 10 mg, 25 mg, 50 mg and 100 mg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

Analytical method development
Method validation (AMV)
QC release testing
ANDA / DMF filings

Industries

Related to Diacerein

View every impurity, metabolite and intermediate we list for Diacerein.

Diacerein impurities

Specifications & identifiers

Chemical identifiers
Product name	Physcion
Catalogue No.	VQ-032829
CAS Number	521-61-9
IUPAC name	1,8-dihydroxy-3-methoxy-6-methylanthracene-9,10-dione
Molecular formula	C₁₆H₁₂O₅
Molecular weight	284.26 g/mol
Exact mass	284.0685
Grade	Reference Standard
HSN code	38229090
InChIKey	FFWOKTFYGVYKIR-UHFFFAOYSA-N
SMILES	CC1=CC2=C(C(=C1)O)C(=O)C3=C(C2=O)C=C(C=C3O)OC
PubChem CID	10639

Physical properties
Physical form	Solid
LogP (XLogP3)	3
H-bond donors / acceptors	2 / 5
TPSA	83.8 Å²
Synonyms	Physcione, Rheochrysidin, Emodin 3-methyl ether, 1,8-Dihydroxy-3-methoxy-6-methyl-9,10-anthracenedione, Parienin, Emodin monomethyl ether, Emodin-3-methyl ether, 1,8-Dihydroxy-3-methoxy-6-methylanthraquinone, 1,8-Dihydroxy-3-methyl-6-methoxyanthraquinone, 1,8-Dihydroxy-3-methyl-6-methoxy-9,10-anthraquinone, Rheochrysidin (Physcione), 1,8-Dihydroxy-3-methoxy-6-methyl-anthraquinone

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of Physcion?

The CAS Registry Number of Physcion is 521-61-9. It is also known as Physcione, Rheochrysidin, Emodin 3-methyl ether.

What is the molecular formula and molecular weight of Physcion?

Physcion has the molecular formula C16H12O5 and a molecular weight of 284.26 g/mol. Its IUPAC name is 1,8-dihydroxy-3-methoxy-6-methylanthracene-9,10-dione.

What is Physcion used for?

Physcion is supplied as a characterised reference material related to Diacerein. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of Physcion can I order?

We supply Physcion in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Physcion?

Yes. Every lot of Physcion is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Physcion be shipped internationally?

Yes. Physcion is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.