ChemicalBook >> CAS DataBase List >>Acetylenedicarboxylic acid
Acetylenedicarboxylic acid
- CAS No.
- 142-45-0
- Chemical Name:
- Acetylenedicarboxylic acid
- Synonyms
- But-2-ynedioic acid;2-BUTYNEDIOIC ACID;NSC-1903;NSC-631597;Butyne acid;2-Butynedioate;butynedioicaci;BUTYNEDIOIC ACID;Acetylen-dicarbonsαure;2-BUTYNE-1,4-DIOIC ACID
- CBNumber:
- CB0334392
- Molecular Formula:
- C4H2O4
- Molecular Weight:
- 114.06
- MDL Number:
- MFCD00004362
- MOL File:
- 142-45-0.mol
- MSDS File:
- SDS
Last updated:2025-01-27 09:38:02
| Melting point | 180-187 °C (dec.) (lit.) |
|---|---|
| Boiling point | 133.5°C (rough estimate) |
| Density | 1.1794 (rough estimate) |
| bulk density | 550kg/m3 |
| refractive index | 1.5260 (estimate) |
| Flash point | 131 °C |
| storage temp. | 2-8°C |
| solubility | Methanol (Slightly), Water |
| pka | pK1: 1.75; pK2: 4.40 (25°C) |
| form | Crystalline Powder or Crystals |
| color | White or cream to beige |
| Water Solubility | soluble |
| BRN | 878357 |
| InChIKey | YTIVTFGABIZHHX-UHFFFAOYSA-N |
| CAS DataBase Reference | 142-45-0(CAS DataBase Reference) |
| FDA UNII | 2D2OJ4KO44 |
| NIST Chemistry Reference | 2-Butynedioic acid(142-45-0) |
| EPA Substance Registry System | 2-Butynedioic acid (142-45-0) |
| UNSPSC Code | 12352106 |
| NACRES | NA.22 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS06 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H301-H315-H319-H335 | |||||||||
| Precautionary statements | P261-P264-P270-P301+P310-P302+P352-P305+P351+P338 | |||||||||
| Hazard Codes | T,Xi | |||||||||
| Risk Statements | 25-36/37/38 | |||||||||
| Safety Statements | 26-45-37/39 | |||||||||
| RIDADR | UN 2811 6.1/PG 3 | |||||||||
| WGK Germany | 3 | |||||||||
| TSCA | Yes | |||||||||
| HazardClass | 6.1 | |||||||||
| PackingGroup | II | |||||||||
| HS Code | 29171990 | |||||||||
| NFPA 704 |
|
Acetylenedicarboxylic acid price More Price(21)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | A15207 | Acetylenedicarboxylic acid 95% | 142-45-0 | 5g | $75.9 | 2024-03-01 | Buy |
| Sigma-Aldrich | A15207 | Acetylenedicarboxylic acid 95% | 142-45-0 | 25g | $216 | 2024-03-01 | Buy |
| TCI Chemical | A0088 | Acetylenedicarboxylic Acid >90.0%(HPLC) | 142-45-0 | 5g | $38 | 2024-03-01 | Buy |
| TCI Chemical | A0088 | Acetylenedicarboxylic Acid >90.0%(HPLC) | 142-45-0 | 25g | $152 | 2024-03-01 | Buy |
| Alfa Aesar | A18736 | Acetylenedicarboxylic acid, 97% | 142-45-0 | 5g | $29.65 | 2024-03-01 | Buy |
Acetylenedicarboxylic acid Chemical Properties,Uses,Production
Chemical Properties
cream coloured to beige crystalline powder or
Uses
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.
Definition
ChEBI: An acetylenic compound that is acetylene in which the hydrogens are replaced by carboxy groups.
Purification Methods
The acid is soluble in Et2O and crystallises from Et2O/pet ether (m 183-183.5o), or H2O as the dihydrate which dehydrates in a desiccator over conc H2SO4 in a vacuum. The dipicrate crystallises from aqueous ether. For the mono K salt see entry in “Metal-organic Compounds”, Chapter 5. [Abbott et al. Org Synth Coll Vol II 10 1943, Huntress et al. Org Synth Coll Vol IV 329 1963, Beilstein 2 H 801, 2 I 317, 2 II 670, 2 III 1991, 2 IV 2290.]
Acetylenedicarboxylic acid Preparation Products And Raw materials
Raw materials
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Preparation Products
1of2
Global( 278)Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Hebei Weibang Biotechnology Co., Ltd | +8615531157085 | abby@weibangbio.com | China | 8804 | 58 |
| Hebei Mujin Biotechnology Co.,Ltd | +86 13288715578 +8613288715578 | sales@hbmojin.com | China | 12830 | 58 |
| Shanghai UCHEM Inc. | +862156762820 +86-13564624040 | sales@myuchem.com | China | 7709 | 58 |
| Capot Chemical Co.,Ltd. | +86-（0）57185586718 +86-13336195806 | sales@capot.com | China | 29792 | 60 |
| Shanghai Daken Advanced Materials Co.,Ltd | +86-371-66670886 | info@dakenam.com | China | 18949 | 58 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21632 | 55 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29871 | 58 |
| Changzhou Ansciep Chemical Co., Ltd. | +86 519 86305871 | sales@ansciepchem.com | CHINA | 4241 | 58 |
| Hubei Jusheng Technology Co.,Ltd. | 18871490254 | linda@hubeijusheng.com | CHINA | 28172 | 58 |
| Chongqing Chemdad Co., Ltd | +86-023-6139-8061 +86-86-13650506873 | sales@chemdad.com | China | 39894 | 58 |
View Lastest Price from Acetylenedicarboxylic acid manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2025-02-14 | Acetylenedicarboxylic acid
142-45-0
|
US $0.00 / KG | 1KG | 99% | 50000KG/month | Hebei Mujin Biotechnology Co.,Ltd | |
 |
2025-02-08 | Acetaylenedicarboxylic Acid
142-45-0
|
US $14.00-132.00 / g | 5g | 0.98 | 25kg | Shanghai UCHEM Inc. | |
 |
2024-11-13 | Acetylenedicarboxylic acid
142-45-0
|
US $1.00 / kg | 1kg | 99% | 10 mt | Hebei Weibang Biotechnology Co., Ltd |
-
- Acetylenedicarboxylic acid
142-45-0
- US $0.00 / KG
- 99%
- Hebei Mujin Biotechnology Co.,Ltd
-
- Acetaylenedicarboxylic Acid
142-45-0
- US $14.00-132.00 / g
- 0.98
- Shanghai UCHEM Inc.
-
- Acetylenedicarboxylic acid
142-45-0
- US $1.00 / kg
- 99%
- Hebei Weibang Biotechnology Co., Ltd
142-45-0(Acetylenedicarboxylic acid)Related Search:
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Dimethyl acetylenedicarboxylate
Malonic acid
Diethyl acetylenedicarboxylic acid,ACETYLENEDICARBOXYLIC ACID DIETHYL ESTER
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Folic acid
Stearic acid
Hyaluronic acid
TRIBUTYLSTANNYLACETYLENE
2-Ethynyl-4,4,5,5-tetramethyl-[1,3,2]dioxaborolane
1of4
ACETYLENEDICARBOXYLIC ACID FREE ACID
BUTYNEDIOIC ACID ACETYLENE DICARBOXYLIC ACID 99%
Acetylenedicarboxylic acid,98%
Acetylen-dicarbonsαure
2-Butynedioate
NSC-1903
NSC-631597
Acetylenedicarboxylic acid,99%
Acetylenedicarboxylic acid 1g [142-45-0]
Acetylenedicarboxylic acid,2-Butynedioic acid
Butyne acid
Acetylenedicarboxylic acid, 99% 25GR
Acetylenedicarboxylic acid, 97%, 97%
Acetylenedicarboxylic acid 95%
ACETYLENEDICARBOXYLIC ACID FOR SYNTHESIS
Acetyleoledicarboxylicacid
BUTYNEDIOIC ACID
2-BUTYNE-1,4-DIOIC ACID
ACETYLENEDICARBOXYLIC ACID
Acetaylenedicarboxylic Acid
Acetylenedicarboxylic Acid >
butynedioicaci
Acetylenedicarboxylic acid,142-45-0
But-2-ynedioic acid
2-BUTYNEDIOIC ACID
142-45-0
HOOCCCCOOH
HO2CCCCO2H
HOOCC8801CCOOH
Acetylenes
Acetylenic Carboxylic Acids & Their Derivatives
Organic Building Blocks
Building Blocks
Carboxylic Acids
Carbonyl Compounds
C1 to C5
Aromatic Carboxylic Acids, Amides, Anilides, Anhydrides & Salts
Acetylenic Carboxylic Acids & Their Derivatives
Acetylenes
Pharmaceutical Intermediates