CAS 142-45-0|2-Butynedioic acid
Introduction：Basic information about CAS 142-45-0|2-Butynedioic acid, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.
| Common Name | 2-Butynedioic acid | ||
|---|---|---|---|
| CAS Number | 142-45-0 | Molecular Weight | 114.056 |
| Density | 1.7±0.1 g/cm3 | Boiling Point | 362.4±25.0 °C at 760 mmHg |
| Molecular Formula | C4H2O4 | Melting Point | 180-187 °C (dec.)(lit.) |
| MSDS | ChineseUSA | Flash Point | 187.2±19.7 °C |
| Symbol | GHS06 | Signal Word | Danger |
Names
| Name | butynedioic acid |
|---|---|
| Synonym | More Synonyms |
Chemical & Physical Properties
| Density | 1.7±0.1 g/cm3 |
|---|---|
| Boiling Point | 362.4±25.0 °C at 760 mmHg |
| Melting Point | 180-187 °C (dec.)(lit.) |
| Molecular Formula | C4H2O4 |
| Molecular Weight | 114.056 |
| Flash Point | 187.2±19.7 °C |
| Exact Mass | 113.995308 |
| PSA | 74.60000 |
| LogP | 0.34 |
| Vapour Pressure | 0.0±1.7 mmHg at 25°C |
| Index of Refraction | 1.560 |
| InChIKey | YTIVTFGABIZHHX-UHFFFAOYSA-N |
| SMILES | O=C(O)C#CC(=O)O |
| Storage condition | 2-8°C |
| Water Solubility | soluble |
Safety Information
| Symbol | GHS06 |
|---|---|
| Signal Word | Danger |
| Hazard Statements | H301-H315-H319-H335 |
| Precautionary Statements | P261-P301 + P310-P305 + P351 + P338 |
| Personal Protective Equipment | Eyeshields;Faceshields;Gloves;type P2 (EN 143) respirator cartridges |
| Hazard Codes | T:Toxic;Xi:Irritant; |
| Risk Phrases | R25;R36/37/38 |
| Safety Phrases | S26-S45-S37/39 |
| RIDADR | UN 2811 6.1/PG 3 |
| WGK Germany | 3 |
| Packaging Group | II |
| Hazard Class | 6.1 |
| HS Code | 29171990 |
Customs
| HS Code | 2917190090 |
|---|---|
| Summary | 2917190090 acyclic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0% |
Articles10
More Articles| An efficient and facile synthesis of 3-amino-5-chromenyl-butenolides from 3-formyl chromone, dialkyl acetylenedicarboxylate, and primary amines. Mol. Divers. 17(1) , 55-61, (2013) A three-component reaction of 3-formyl chromones, dialkyl acetylenedicarboxylate, and isocyanides in the presence of POCl(3) was used as a highly efficient and practical approach for the synthesis of ... | |
| Efficient synthesis and in vitro antitubercular activity of 1,2,3-triazoles as inhibitors of Mycobacterium tuberculosis. Bioorg. Med. Chem. Lett. 21 , 7273-6, (2011) Efficient and rapid synthesis of 1,2,3-triazole derivatives has been achieved via Huisgen's 1,3-dipolar cycloaddition between alkyl/arylazides and diethyl/dimethyl acetylenedicarboxylate in excellent ... | |
| Synthesis of symmetrical and unsymmetrical diarylalkynes from propiolic acid using palladium-catalyzed decarboxylative coupling. J. Org. Chem. 75(18) , 6244-51, (2010) Symmetrical diarylalkynes were obtained from propiolic acid (or 2-butynedioic acid) and aryl halides in good yields. The optimized reaction conditions were 2.0 equiv of aryl halide, 1.0 equiv of propi... |
Synonyms
| MFCD00004362 |
| Acetylendicarboxylate |
| EINECS 205-536-0 |
| Acetylenedicarboxylic acid |
| but-2-ynedioic acid |
| 2-Butynedioic acid |
