Bis(2-ethylhexyl)maleate

About Bis(2-ethylhexyl)maleate

Bis(2-ethylhexyl)maleate is an impurity of Maleic acid carrying the CAS registry number 142-16-5. With the molecular formula C20H36O4, it has a molar mass of 340.5 g/mol. Systematically, it is named bis(2-ethylhexyl) (Z)-but-2-enedioate. Alternative names: Di-2-ethylhexyl maleate and RC Comonomer DOM.

The product is provided as a solid. Reference materials should be stored sealed and away from light and moisture, as specified on the accompanying COA. Under GHS it is labelled “Warning”, so handle it with suitable PPE and consult the SDS.

As a characterised impurity of Maleic acid, it is used for analytical method development, method validation (AMV) and routine quality-control testing, and it supports ANDA and DMF regulatory filings. Buyers come mainly from pharmaceutical manufacturing and academic and industrial research.

Available in 10 mg, 25 mg, 50 mg and 100 mg packs, Bis(2-ethylhexyl)maleate is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

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

Industries

Related to Maleic acid

View every impurity, metabolite and intermediate we list for Maleic acid.

Maleic acid impurities

Specifications & identifiers

Chemical identifiers
Product name	Bis(2-ethylhexyl)maleate
Catalogue No.	VQ-027251
CAS Number	142-16-5
IUPAC name	bis(2-ethylhexyl) (Z)-but-2-enedioate
Molecular formula	C₂₀H₃₆O₄
Molecular weight	340.5 g/mol
Exact mass	340.2614
Grade	Reference Standard
HSN code	38229090
InChIKey	ROPXFXOUUANXRR-YPKPFQOOSA-N
SMILES	CCCCC(CC)COC(=O)/C=C\C(=O)OCC(CC)CCCC
PubChem CID	5365125

Physical properties
Physical form	Solid
LogP (XLogP3)	6.5
H-bond donors / acceptors	0 / 4
TPSA	52.6 Å²
Synonyms	Di-2-ethylhexyl maleate, RC Comonomer DOM, Di-(2-ethylhexyl)maleate, Maleic acid, bis(2-ethylhexyl) ester, diethylhexyl maleate, 2-Butenedioic acid (Z)-, bis(2-ethylhexyl) ester, diethylhexyl malate, 2-Butenedioic acid (2Z)-, bis(2-ethylhexyl) ester, Bis-(2-ethylhexyl)ester kyseliny maleinove, 2-Butenedioic acid (2Z)-, 1,4-bis(2-ethylhexyl) ester, Dioctyl" maleate

Safety & hazard information (GHS)

Harmful / irritant

Health hazard

Environmental hazard

Signal word: Warning

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation
H373May causes damage to organs through prolonged or repeated exposure
H410Very toxic to aquatic life with long lasting effects

Precautionary statements: P260, P264, P264 + P265, P273, P280, P302 + P352, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + P364, P391, 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 Bis(2-ethylhexyl)maleate?

The CAS Registry Number of Bis(2-ethylhexyl)maleate is 142-16-5. It is also known as Di-2-ethylhexyl maleate, RC Comonomer DOM, Di-(2-ethylhexyl)maleate.

What is the molecular formula and molecular weight of Bis(2-ethylhexyl)maleate?

Bis(2-ethylhexyl)maleate has the molecular formula C20H36O4 and a molecular weight of 340.5 g/mol. Its IUPAC name is bis(2-ethylhexyl) (Z)-but-2-enedioate.

What is Bis(2-ethylhexyl)maleate used for?

Bis(2-ethylhexyl)maleate is supplied as a characterised reference material related to Maleic acid. 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 Bis(2-ethylhexyl)maleate can I order?

We supply Bis(2-ethylhexyl)maleate 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 Bis(2-ethylhexyl)maleate?

Yes. Every lot of Bis(2-ethylhexyl)maleate 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 Bis(2-ethylhexyl)maleate be shipped internationally?

Yes. Bis(2-ethylhexyl)maleate 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.