Monobutyl Maleate

Name: Monobutyl Maleate
Brand: Vaqora Chemicals
SKU: VQ-008540

About Monobutyl Maleate

Listed under CAS 925-21-3, Monobutyl Maleate is a carboxylic acid available from Vaqora Chemicals at a purity of 97.5%. Formula C8H12O4, molecular weight 172.18 g/mol. The IUPAC name is (Z)-4-butoxy-4-oxobut-2-enoic acid. It is also known as (2Z)-4-Butoxy-4-oxobut-2-enoic acid or 4-butoxy-4-oxobut-2-enoic acid.

Store sealed in a dry, well-ventilated location away from incompatible materials. The GHS classification uses the signal word “Danger”, so appropriate gloves, eye protection and ventilation are recommended.

Typical applications include organic synthesis and API synthesis. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

Available in 10 mg, 25 mg, 50 mg and 100 mg packs, Monobutyl Maleate is dispatched with a Certificate of Analysis (COA) to destinations worldwide. Stock is available for quick dispatch. A Safety Data Sheet (SDS) and technical specifications are available on request.

Typical applications

Organic synthesis
API synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	Monobutyl Maleate
Catalogue No.	VQ-008540
CAS Number	925-21-3
IUPAC name	(Z)-4-butoxy-4-oxobut-2-enoic acid
Molecular formula	C₈H₁₂O₄
Molecular weight	172.18 g/mol
Exact mass	172.0736
Grade	Reference Standard
Purity / assay	97.5%
InChIKey	UTOVMEACOLCUCK-PLNGDYQASA-N
SMILES	CCCCOC(=O)/C=C\C(=O)O
PubChem CID	5356726

Physical properties
Physical form	Other
LogP (XLogP3)	1.1
H-bond donors / acceptors	1 / 4
TPSA	63.6 Å²
Synonyms	(2Z)-4-Butoxy-4-oxobut-2-enoic acid, 4-butoxy-4-oxobut-2-enoic acid, N-(4-Methoxyphenyl)-maleisoimid, Butyl hydrogen maleate, 2-Butenedioic acid (Z)-, monobutyl ester, 2-Butenedioic acid (2Z)-, monobutyl ester, n-butyl maleate, 2-Butenedioic acid (2Z)-, 1-butyl ester, Maleic acid, monobutyl ester, mono-Butyl maleate, Hydrogen butyl maleate, (Z)-4-butoxy-4-oxo-but-2-enoic acid

Safety & hazard information (GHS)

Corrosive

Harmful / irritant

Health hazard

Signal word: Danger

Hazard statements

H314Causes severe skin burns and eye damage
H315Causes skin irritation
H318Causes serious eye damage
H335May cause respiratory irritation
H373May causes damage to organs through prolonged or repeated exposure

Precautionary statements: P260, P261, P264, P264 + P265, P271, P280, P301 + P330 + P331, P302 + P352, P302 + P361 + P354, P304 + P340, P305 + P354 + P338, P316, P317, P319, P321, P332 + P317, P362 + P364, P363, 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 Monobutyl Maleate?

The CAS Registry Number of Monobutyl Maleate is 925-21-3. It is also known as (2Z)-4-Butoxy-4-oxobut-2-enoic acid, 4-butoxy-4-oxobut-2-enoic acid, N-(4-Methoxyphenyl)-maleisoimid.

What is the molecular formula and molecular weight of Monobutyl Maleate?

Monobutyl Maleate has the molecular formula C8H12O4 and a molecular weight of 172.18 g/mol. Its IUPAC name is (Z)-4-butoxy-4-oxobut-2-enoic acid.

Which grade and pack sizes of Monobutyl Maleate can I order?

We supply Monobutyl Maleate in Reference Standard (97.5%) grade, in 10 mg, 25 mg, 50 mg, 100 mg, 250 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Monobutyl Maleate?

Yes. Every lot of Monobutyl 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 Monobutyl Maleate be shipped internationally?

Yes. Monobutyl 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.