2-Butynedioic acid
2-Butynedioic acid structure
|
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 | Chinese USA | Flash Point | 187.2±19.7 °C | |
| Symbol |
GHS06 |
Signal Word | Danger | |
| Name | butynedioic acid |
|---|---|
| Synonym | More Synonyms |
| 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 |
| Storage condition | 2-8°C |
| Water Solubility | soluble |
| 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 |
| Precursor 8 | |
|---|---|
| DownStream 9 | |
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CAS#:142207-58-7| 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% |
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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 ... |
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Efficient synthesis and in vitro antitubercular activity of 1,2,3-triazoles as inhibitors of Mycobacterium tuberculosis.
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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... |
| MFCD00004362 |
| Acetylendicarboxylate |
| EINECS 205-536-0 |
| Acetylenedicarboxylic acid |
| but-2-ynedioic acid |
| 2-Butynedioic acid |
- Shanghai Jizhi Biochemical Technology Co., Ltd
- China
- Product Name: 2-Butynedioic acid
- Price: ￥2018.0/100g ￥248.0/5g ￥658.0/25g
- Purity: 95.0%
- Stocking Period: Inquiry
- Contact: Liu jia
- Dayang Chem (Hangzhou) Co., Ltd.
- China
- Product Name: Acetylenedicarboxylic acid
- Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
- Purity: 98.0%
- Stocking Period: Inquiry
- Contact: Ms Wang
- Zhejiang Hangyu API Co., Ltd
- China
- Product Name: Acetylenedicarboxylic acid
- Price: ￥Inquiry/1kg
- Purity: 99.5%
- Stocking Period: Inquiry
- Contact: Vinnie
- Henan Tianfu Chemical Co., Ltd.
- China
- Product Name: Acetylenedicarboxylic acid,142-45-0
- Price: $Inquiry/1kg $Inquiry/25kg $Inquiry/1000kg $Inquiry/10ton
- Purity: 99.0%
- Stocking Period: Inquiry
- Contact: Anson
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