Acetylenedicarboxylic acid, 97%

Description

CAS: 142-45-0 | C4H2O4 | 114.06 g/mol

Acetylenedicarboxylic acid is employed in the preparation of dimethyl acetylenedicarboxylate and potassium hydrogenacetylenedicarboxylate. It is also used as a laboratory reagent. Further, it is used as a precursor in organic synthesis and also serves as a pharmaceutical intermediate.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
Acetylenedicarboxylic acid is employed in the preparation of dimethyl acetylenedicarboxylate and potassium hydrogenacetylenedicarboxylate. It is also used as a laboratory reagent. Further, it is used as a precursor in organic synthesis and also serves as a pharmaceutical intermediate.

Solubility
Soluble in diethyl ether and water.

Notes
Air sensitive. Store in a cool place. Incompatible with bases, alkali, reducing agents and oxidizing agents.

Specifications

Chemical Identifiers

• CAS: 142-45-0
• Molecular Formula: C4H2O4
• Molecular Weight (g/mol): 114.06
• MDL Number: MFCD00004362
• InChI Key: YTIVTFGABIZHHX-UHFFFAOYSA-N
• Synonym: acetylenedicarboxylic acid, 2-butynedioic acid, butynedioic acid, acetylenedicarboxylate, unii-2d2oj4ko44, acetylenedicarboxylic acid 8ci, acetylendicarboxylate, hoocc=ccooh, acetylenedicarboxylicacid, pubchem13735
• PubChem CID: 371
• ChEBI: CHEBI:30781
• IUPAC Name: but-2-ynedioic acid
• SMILES: OC(=O)C#CC(O)=O

• Melting Point: ∼182°C (decomposition)
• Flash Point: 131°C (267°F)
• Quantity: 5 g
• UN Number: UN2928
• Beilstein: 878357
• Solubility Information: Soluble in diethyl ether and water.
• Formula Weight: 114.06
• Percent Purity: 97%
• Chemical Name or Material: Acetylenedicarboxylic acid

Safety and Handling

Hazard Category	H301+H311+H331-H315-H319-H335
Hazard Statement	GHS H Statement H300-H310-H330-H314-H318 Fatal if swallowed. Fatal in contact with skin. Fatal if inhaled. Causes severe skin burns and eye damage. Causes serious eye damage.
Precautionary Statement	P261-P264b-P270-P271-P280-P301+P310-P302+P352-P304+P340-P305+P351+P338-P311-P312-P330-P332+P313-P361-P363-P501c
DOTInformation	Hazard Class: 6.1; Packaging Group: III
EINECSNumber	205-536-0
TSCA	Yes
Recommended Storage	Keep cold

SDS

RUO – Research Use Only