Chrysophanol

About Chrysophanol

Chrysophanol is a carbonyl building block carrying the CAS registry number 481-74-3. The compound has the formula C15H10O4, corresponding to a molecular weight of 254.24 g/mol. Systematically, it is named 1,8-dihydroxy-3-methylanthracene-9,10-dione. It is also known as 3-Methylchrysazin or 1,8-Dihydroxy-3-methylanthraquinone.

Keep the container tightly sealed and store it in a cool, dry area. Under GHS it is labelled “Warning”, so handle it with suitable PPE and consult the SDS.

It is commonly used for organic synthesis, condensation and reductive amination and API intermediates. Buyers come mainly from pharmaceutical manufacturing and academic and industrial research.

Available in 100 mg, 250 mg, 1 g and 5 g packs, Chrysophanol is dispatched with a Certificate of Analysis (COA) to destinations worldwide. A Safety Data Sheet (SDS) and technical specifications are available on request.

Typical applications

Organic synthesis
Condensation & reductive amination
API intermediates

Industries

Specifications & identifiers

Chemical identifiers
Product name	Chrysophanol
Catalogue No.	VQ-050048
CAS Number	481-74-3
IUPAC name	1,8-dihydroxy-3-methylanthracene-9,10-dione
Molecular formula	C₁₅H₁₀O₄
Molecular weight	254.24 g/mol
Exact mass	254.0579
InChIKey	LQGUBLBATBMXHT-UHFFFAOYSA-N
SMILES	CC1=CC2=C(C(=C1)O)C(=O)C3=C(C2=O)C=CC=C3O
PubChem CID	10208

Physical properties
Physical form	Other
LogP (XLogP3)	3.5
H-bond donors / acceptors	2 / 4
TPSA	74.6 Å²
Synonyms	3-Methylchrysazin, 1,8-Dihydroxy-3-methylanthraquinone, 1,8-Dihydroxy-3-methyl-9,10-anthracenedione, C.I. Natural Yellow 23, 4,5-Dihydroxy-2-methylanthraquinone, 3-Methyl-1,8-dihydroxyanthraquinone, 2-Methyl-4,5-dihydroxyanthraquinone, 1,8-dihydroxy-3-methyl-9,10-anthraquinone, Anthraquinone, 1,8-dihydroxy-3-methyl-, Turkey rhubarb, Crysophanol, Crysophanic acid

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 Chrysophanol?

The CAS Registry Number of Chrysophanol is 481-74-3. It is also known as 3-Methylchrysazin, 1,8-Dihydroxy-3-methylanthraquinone, 1,8-Dihydroxy-3-methyl-9,10-anthracenedione.

What is the molecular formula and molecular weight of Chrysophanol?

Chrysophanol has the molecular formula C15H10O4 and a molecular weight of 254.24 g/mol. Its IUPAC name is 1,8-dihydroxy-3-methylanthracene-9,10-dione.

Which grade and pack sizes of Chrysophanol can I order?

We supply Chrysophanol, in 100 mg, 250 mg, 1 g, 5 g packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Chrysophanol?

Yes. Every lot of Chrysophanol 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 Chrysophanol be shipped internationally?

Yes. Chrysophanol 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.