Propiolic Acid
- CAS No.
- 471-25-0
- Chemical Name:
- Propiolic Acid
- Synonyms
- PROPYNOIC ACID;propiolic;Propynoate;Propinoic acid;PROPARGYLIC ACID;2-PROPYNIOC ACID;HCequivCCOOH;PROPIOLIC ACID;Propiolic acidd;2-PROPYNOIC ACID
- CBNumber:
- CB8195906
- Molecular Formula:
- C3H2O2
- Molecular Weight:
- 70.05
- MDL Number:
- MFCD00004360
- MOL File:
- 471-25-0.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Product description | Number | Pack Size | Price |
| Propiolic acid 95% | P51400 | 5g | $48.8 |
| Propiolic acid 95% | P51400 | 25g | $143 |
| Propiolic Acid >97.0%(GC)(T) | P0497 | 5g | $60 |
| Propiolic Acid >97.0%(GC)(T) | P0497 | 25g | $264 |
| Propiolic acid 95% | P51400 | 100g | $291 |
| More product size | |||
| Melting point | 16-18 °C (lit.) |
|---|---|
| Boiling point | 102 °C/200 mmHg (lit.) |
| Density | 1.138 g/mL at 25 °C (lit.) |
| refractive index |
n |
| Flash point | 138 °F |
| storage temp. | 2-8°C |
| solubility | Chloroform (Soluble), Methanol (Soluble) |
| pka | 1.84(at 25℃) |
| form | Liquid After Melting |
| color | Clear colorless to light brown |
| Specific Gravity | 1.138 |
| Water Solubility | miscible |
| Merck | 14,7821 |
| BRN | 878176 |
| Stability | Stable. Incompatible with bases, oxidizing agents, reducing agents. Combustible. |
| InChI | 1S/C3H2O2/c1-2-3(4)5/h1H,(H,4,5) |
| InChIKey | UORVCLMRJXCDCP-UHFFFAOYSA-N |
| SMILES | OC(=O)C#C |
| CAS DataBase Reference | 471-25-0(CAS DataBase Reference) |
| EWG's Food Scores | 1 |
| FDA UNII | P2QW39G9LZ |
| NIST Chemistry Reference | Propiolic acid(471-25-0) |
| EPA Substance Registry System | 2-Propynoic acid (471-25-0) |
| UNSPSC Code | 12352100 |
| NACRES | NA.22 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |    GHS02,GHS05,GHS06 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H226-H301-H310-H314 | |||||||||
| Precautionary statements | P210-P233-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338 | |||||||||
| PPE | Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter | |||||||||
| Hazard Codes | T | |||||||||
| Risk Statements | 24/25-34-25-23/24/25 | |||||||||
| Safety Statements | 26-36/37/39-45-24/25-7/9 | |||||||||
| RIDADR | UN 2920 8/PG 2 | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | UD9300000 | |||||||||
| F | 3-8 | |||||||||
| TSCA | TSCA listed | |||||||||
| HazardClass | 8 | |||||||||
| PackingGroup | II | |||||||||
| HS Code | 29161980 | |||||||||
| Storage Class | 3 - Flammable liquids | |||||||||
| Hazard Classifications | Acute Tox. 2 Dermal Acute Tox. 3 Oral Eye Dam. 1 Flam. Liq. 3 Skin Corr. 1B |
|||||||||
| Hazardous Substances Data | 471-25-0(Hazardous Substances Data) | |||||||||
| Toxicity | guinea pig,LD50,skin,100mg/kg (100mg/kg),"Patty's Industrial Hygiene and Toxicology," 3rd rev. ed., Clayton, G.D., and F.E. Clayton, eds., New York, John Wiley & Sons, Inc., 1978-82. Vol. 3 originally pub. in 1979; pub. as 2n rev. ed. in 1985.Vol. 2C, Pg. 4953, 1982. | |||||||||
| Limited Quantities | 1.0 L (0.3 gallons) (liquid) or 1 Kg (2.2 lbs) (solid) | |||||||||
| Excepted Quantities | Max Inner Pack (30g or 30ml) and Max Outer Pack (500g or 500ml) | |||||||||
| NFPA 704 |
|
Propiolic Acid price More Price(24)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | P51400 | Propiolic acid 95% | 471-25-0 | 5g | $48.8 | 2026-03-19 | Buy |
| Sigma-Aldrich | P51400 | Propiolic acid 95% | 471-25-0 | 25g | $143 | 2026-03-19 | Buy |
| TCI Chemical | P0497 | Propiolic Acid >97.0%(GC)(T) | 471-25-0 | 5g | $60 | 2026-03-19 | Buy |
| TCI Chemical | P0497 | Propiolic Acid >97.0%(GC)(T) | 471-25-0 | 25g | $264 | 2026-03-19 | Buy |
| Sigma-Aldrich | P51400 | Propiolic acid 95% | 471-25-0 | 100g | $291 | 2026-03-19 | Buy |
Propiolic Acid Chemical Properties,Uses,Production
Chemical Properties
viscous yellow liquid
Uses
Propiolic acid is an intermediate in monohalogenated acetylene synthesis and a corrosion inhibitor for steel.
Uses
Propiolic acid is a reagent used in the preparation of transition metal complexes, haloalkyl propiolates and halopropenoates.
Uses
Reagent employed in the synthesis of transition metal complexes, haloalkyl propiolates, and halopropenoates.
Definition
ChEBI: A terminal acetylenic compound that is a 3-carbon, straight-chain, monounsaturated fatty acid having one acetylenic bond.
References
[1] Elmer Raunio, Louis Remsberg and Jr. “Notes- Potassium Hydroxide as a Catalyst for the Condensation of Propiolic Acid or Propiolic Esters with Ketones.” The Journal of Organic Chemistry 25 8 (1960): 1436–1437.
[2] K. Okuma, Toshiyuki Shigetomi, M. Koda. “Reaction of Selenoketones with Propiolic Acid.” Phosphorus Sulfur and Silicon and The Related Elements 9 5 1 (2008): 1057–1060.
[3] Dirk Hollenwger* and Andreas J. Kornath. “Synthesis and Structure of Protonated Propiolic Acid.” The Journal of Organic Chemistry 89 16 (2024): 11421-11428 11421-11428.
Propiolic Acid Preparation Products And Raw materials
Raw materials
Preparation Products
1of3
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Hebei Chuanghai Biotechnology Co., Ltd | +8615350571055 | Sibel@chuanghaibio.com | China | 8738 | 58 |
| Capot Chemical Co.,Ltd. | +86-（0）57185586718; +8613336195806 | sales@capot.com | China | 29640 | 60 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21592 | 55 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29821 | 58 |
| Changzhou Ansciep Chemical Co., Ltd. | +86 519 86305871 | sales@ansciepchem.com | CHINA | 4241 | 58 |
| Jinan Carbotang Biotech Co.,Ltd. | +8615866703830 | figo.gao@foxmail.com | China | 8497 | 58 |
| CONIER CHEM AND PHARMA LIMITED | +8618523575427 | sales@conier.com | China | 49977 | 58 |
| Neostar United (Changzhou) Industrial Co., Ltd. | +86-0519-85551759 +8613506123987 | marketing1@neostarunited.com | China | 8828 | 58 |
| JIAXING REGEN CHEMICAL CO.,LTD | +8613385739570 | regen_chemical1@163.com | China | 226 | 58 |
| SIMAGCHEM CORP | +86-5922680277 +86-13806087780 | sale@simagchem.com | China | 17346 | 58 |
View Lastest Price from Propiolic Acid manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-03-20 | Propiolic Acid
471-25-0
|
US $1.00 / kg | 1kg | 99% | 10 mt | Hebei Chuanghai Biotechnology Co., Ltd | |
 |
2019-07-06 | Propiolic Acid
471-25-0
|
US $1.00 / KG | 1KG | 97% | 200KG | Career Henan Chemical Co |
-
- Propiolic Acid
471-25-0
- US $1.00 / kg
- 99%
- Hebei Chuanghai Biotechnology Co., Ltd
-
- Propiolic Acid
471-25-0
- US $1.00 / KG
- 97%
- Career Henan Chemical Co
