Santonin

About Santonin

Santonin is an API reference standard carrying the CAS registry number 481-06-1. Formula C15H18O3, molecular weight 246.3 g/mol. The IUPAC name is (3S,3aS,5aS,9bS)-3,5a,9-trimethyl-3a,4,5,9b-tetrahydro-3H-benzo[g][1]benzofuran-2,8-dione. Common synonyms include alpha-Santonin and Santoninic anhydride.

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 “Danger”, so appropriate gloves, eye protection and ventilation are recommended.

As a reference sample of the parent drug substance, it is used for identification, assay and impurity-profiling work during analytical method development, validation (AMV) and routine QC. Our customers for this product work in pharmaceutical manufacturing and academic and industrial research.

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

Typical applications

Identification & assay
Method development & validation
QC reference material

Industries

Specifications & identifiers

Chemical identifiers
Product name	Santonin
Catalogue No.	VQ-042092
CAS Number	481-06-1
IUPAC name	(3S,3aS,5aS,9bS)-3,5a,9-trimethyl-3a,4,5,9b-tetrahydro-3H-benzo[g][1]benzofuran-2,8-dione
Molecular formula	C₁₅H₁₈O₃
Molecular weight	246.3 g/mol
Exact mass	246.1256
Grade	Reference Standard
HSN code	38229090
InChIKey	XJHDMGJURBVLLE-BOCCBSBMSA-N
SMILES	C[C@H]1[C@@H]2CC[C@]3(C=CC(=O)C(=C3[C@H]2OC1=O)C)C
PubChem CID	221071

Physical properties
Physical form	Solid
LogP (XLogP3)	2.3
H-bond donors / acceptors	0 / 3
TPSA	43.4 Å²
Synonyms	alpha-Santonin, Santoninic anhydride, L-alpha-Santonin, (3S,3aS,5aS,9bS)-3,5a,9-trimethyl-3a,4,5,9b-tetrahydro-3H-benzo(g)(1)benzofuran-2,8-dione, (3R,3aR,5aR,9bR)-3,5a,9-trimethyl-3a,4,5,9b-tetrahydro-3H-benzo(g)(1)benzofuran-2,8-dione, (-)-alpha-Santonin, (-)-Santonine, .alpha.-Santonin, (3S,3aS,5aS,9bS)-3,5a,9-trimethyl-3a,4,5,9b-tetrahydro-3H-benzo[g]benzofuran-2,8-dione, l-.alpha.-Santonin, (-)-.alpha.-Santonin

Safety & hazard information (GHS)

Toxic

Harmful / irritant

Signal word: Danger

Hazard statements

H302Harmful if swallowed
H310+H330Fatal in contact with skin or if inhaled
H310Fatal in contact with skin
H315Causes skin irritation
H319Causes serious eye irritation
H330Fatal if inhaled
H335May cause respiratory irritation

Precautionary statements: P260, P261, P262, P264, P264 + P265, P270, P271, P280, P284, P301 + P317, P302 + P352, P304 + P340, P305 + P351 + P338, P316, P319, P320, P321, P330, P332 + P317, P337 + P317, P361 + P364, P362 + P364, P403 + P233, P405

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 Santonin?

The CAS Registry Number of Santonin is 481-06-1. It is also known as alpha-Santonin, Santoninic anhydride, L-alpha-Santonin.

What is the molecular formula and molecular weight of Santonin?

Santonin has the molecular formula C15H18O3 and a molecular weight of 246.3 g/mol. Its IUPAC name is (3S,3aS,5aS,9bS)-3,5a,9-trimethyl-3a,4,5,9b-tetrahydro-3H-benzo[g][1]benzofuran-2,8-dione.

Which grade and pack sizes of Santonin can I order?

We supply Santonin 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 Santonin?

Yes. Every lot of Santonin 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 Santonin be shipped internationally?

Yes. Santonin 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.