[A18736] CAS 142-45-0 | Acetylenedicarboxylic acid, 97% | Alfa
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Brand: Alfa Aesar
142-45-0 | C4H2O4 | acetylenedicarboxylic acid
Chemical Identifiers
CAS
142-45-0
Molecular Weight (g/mol)
114.06
Synonym
acetylenedicarboxylic acid
SMILES
OC(=O)C#CC(O)=O
InChI Key
YTIVTFGABIZHHX-UHFFFAOYSA-N
Molecular Formula
C4H2O4
IUPAC Name
but-2-ynedioic acid
Specifications
Appearance (Color)
White to cream to yellow to pale brown
Identification (FTIR)
Conforms
Form
Powder or crystalline powder or crystals
Assay (HPLC)
≥96.0%
Water Content (Karl Fischer Titration)
≤1.5%
설명
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.
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.
Other References:
UN Number:UN2928Beilstein:878357
GHS Hazard and Precautionary Statements
Hazard Statements:H301+H311+H331-H315-H319-H335
GHS H StatementH300-H310-H330-H314-H318Fatal if swallowed.Fatal in contact with skin.Fatal if inhaled.Causes severe skin burns and eye damage.Causes serious eye damage.
Precautionary Statements:P261-P264b-P270-P271-P280-P301+P310-P302+P352-P304+P340-P305+P351+P338-P311-P312-P330-P332+P313-P361-P363-P501c
Risk & Safety
TSCA:Yes
경고:RUO – Research Use Only
CAS142-45-0FORMULAC4H2O4HAZARD CLASS6.1EINECS205-536-0MDLMFCD00004362PACKAGING GROUPIII
| Pakage | 100g, 25g, 5g |
|---|---|
| brand | Alfa Aesar |
