Ethyl Stearate

About Ethyl Stearate

Ethyl Stearate is a process intermediate or related compound of Allopurinol carrying the CAS registry number 111-61-5. Formula C20H40O2, molecular weight 312.5 g/mol. Its systematic (IUPAC) name is ethyl octadecanoate. Alternative names: Stearic acid ethyl ester and Octadecanoic acid, ethyl ester.

It is supplied as a solid. Keep the vial tightly closed, protected from light and humidity, at the temperature stated on the Certificate of Analysis. It carries the GHS signal word “Warning” with 3 hazard statements. Review the Safety Data Sheet before use.

It is a process intermediate or related compound in the synthesis of Allopurinol, useful for route development, impurity fate-and-purge studies and analytical method development. It is used across pharmaceutical manufacturing and academic and industrial research.

Available in 10 mg, 25 mg, 50 mg and 100 mg packs, Ethyl Stearate is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

API route development
Impurity fate & purge studies
Analytical method development

Industries

Related to Allopurinol

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

Allopurinol impurities

Specifications & identifiers

Chemical identifiers
Product name	Ethyl Stearate
Catalogue No.	VQ-051118
CAS Number	111-61-5
IUPAC name	ethyl octadecanoate
Molecular formula	C₂₀H₄₀O₂
Molecular weight	312.5 g/mol
Exact mass	312.3028
InChIKey	MVLVMROFTAUDAG-UHFFFAOYSA-N
SMILES	CCCCCCCCCCCCCCCCCC(=O)OCC
PubChem CID	8122

Physical properties
Physical form	Solid
LogP (XLogP3)	8.9
H-bond donors / acceptors	0 / 2
TPSA	26.3 Å²
Synonyms	Stearic acid ethyl ester, Octadecanoic acid, ethyl ester, Ethyl n-octadecanoate, Stearic acid, ethyl ester, octadecanoic acid ethyl ester, Dicyclohexylammonium sulfate, Dicyclohexylammonium sulphate, Octadecanoic acid-ethyl ester, QSPL 080, Octadecanoic acid ethyl, Ethyloctadecanoate

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 Ethyl Stearate?

The CAS Registry Number of Ethyl Stearate is 111-61-5. It is also known as Stearic acid ethyl ester, Octadecanoic acid, ethyl ester, Ethyl n-octadecanoate.

What is the molecular formula and molecular weight of Ethyl Stearate?

Ethyl Stearate has the molecular formula C20H40O2 and a molecular weight of 312.5 g/mol. Its IUPAC name is ethyl octadecanoate.

What is Ethyl Stearate used for?

Ethyl Stearate is supplied as a characterised reference material related to Allopurinol. 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 Ethyl Stearate can I order?

We supply Ethyl Stearate, 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 Ethyl Stearate?

Yes. Every lot of Ethyl Stearate 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 Ethyl Stearate be shipped internationally?

Yes. Ethyl Stearate 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.