Dimethyl Acetylenedicarboxylate CAS 762-42-5

Dimethyl Acetylenedicarboxylate is a colourless to light yellow transparent liquid with irritating odour.As a highly active alkyne derivative, it is mainly used in organic synthesis (e.g. Diels-Alder reaction, construction of heterocyclic compounds) and modification of polymer materials, and its double ester structure is easy to participate in cycloaddition and polymerisation reactions.It needs to be stored at low temperature and protected from light, and is highly corrosive to skin/eyes, and requires strict protection for operation.

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Model:
762-42-5
Brand:
Futurechemical
Code:
762-42-5

Product Description

Dimethyl acetylenedicarboxylate Basic information
Product Name:	Dimethyl acetylenedicarboxylate
CAS:	762-42-5
MF:	C6H6O4
MW:	142.11
EINECS:	212-098-4
Mol File:	762-42-5.mol
Dimethyl acetylenedicarboxylate Chemical Properties
Melting point	-18 °C
Boiling point	95-98 °C/19 mmHg (lit.)
density	1.156 g/mL at 25 °C (lit.)
refractive index	n20/D 1.447(lit.)
Fp	187 °F
storage temp.	Keep in dark place,Sealed in dry,Room Temperature
form	Liquid
color	Colorless to pale yellow
Water Solubility	Soluble in most organic solvents. Insoluble in water.
Sensitive	Light Sensitive
BRN	607063
InChIKey	VHILMKFSCRWWIJ-UHFFFAOYSA-N
CAS DataBase Reference	762-42-5(CAS DataBase Reference)
NIST Chemistry Reference	2-Butynedioic acid, dimethyl ester(762-42-5)
EPA Substance Registry System	2-Butynedioic acid, dimethyl ester (762-42-5)

Dimethyl Acetylenedicarboxylate CAS 762-42-5 Polymer crosslinking agent Photosensitive material preparation Coating additive Surfactant Special rubber auxiliary

Quality Assurance

Full-Process Quality Control: From incoming raw material inspection to in-process monitoring and final outgoing checks, every batch is inspected at each production stage against strict acceptance standards.
Third-Party Certified & Tested: Our quality management system is certified to ISO 9001, and products are regularly tested by accredited laboratories (e.g. SGS, TÜV). Test reports are available on request.
100% Batch Traceability: Each batch carries a unique lot number that links raw material records, production parameters, and test results, enabling complete traceability from factory to final delivery.
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FAQ From Customers

Q1: What is the minimum order quantity?

A: There is no quantity limit for the first sample or trial order. Just tell us the actual quantity you need.
Q2: How can I confirm that the quality meets the requirements?

A: Provide your specifications, and our technical team will check them or customize them for you; we can provide TDS, MSDS, and COA, and accept third-party testing.
Q3: How do you ensure stable quality?

A: We manufacture under an ISO 9001 quality system, test every batch before release, and retain samples for 24 months for traceability.
Q4: Do you provide samples?

A: Yes — Free samples are available; freight is at buyer's expense for express delivery.