ChemicalBook > CAS DataBase List > 2-Butynoic acid
2-Butynoic acid
- Product Name
- 2-Butynoic acid
- CAS No.
- 590-93-2
- Chemical Name
- 2-Butynoic acid
- Synonyms
- BUT-2-YNOIC ACID;Butynoic acid;TETROLIC ACID;2-Butynoic;2-Butyl acid;2-BUTYNOIC ACID;2- butynic acid;2-Butynolc acid;2-Butynoate acid;2-Butynoicacid,98%
- CBNumber
- CB6194374
- Molecular Formula
- C4H4O2
- Formula Weight
- 84.07
- MOL File
- 590-93-2.mol
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2-Butynoic acid Property
- Melting point:
- 78-80 °C (lit.)
- Boiling point:
- 200-203°C
- Density
- 0,9641 g/cm3
- refractive index
- 1.3918 (estimate)
- Flash point:
- 200-203°C
- storage temp.
- Sealed in dry,2-8°C
- solubility
- water: soluble50mg/mL, clear to very slightly hazy, colorless to very faintly yellow
- form
- Powder
- pka
- 2.62(at 25℃)
- color
- White to yellow
- Water Solubility
- Soluble in water. Slightly soluble in methanol and chloroform.
- BRN
- 1740205
- InChI
- 1S/C4H4O2/c1-2-3-4(5)6/h1H3,(H,5,6)
- InChIKey
- LUEHNHVFDCZTGL-UHFFFAOYSA-N
- SMILES
- CC#CC(O)=O
- CAS DataBase Reference
- 590-93-2(CAS DataBase Reference)
- NIST Chemistry Reference
- 2-Butynoic acid(590-93-2)
- EPA Substance Registry System
- 2-Butynoic acid (590-93-2)
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Safety
- Hazard Codes
- C
- Risk Statements
- 34-20/21/22
- Safety Statements
- 26-27-36/37/39-45
- RIDADR
- UN 3261 8/PG 2
- WGK Germany
- 3
- TSCA
- TSCA listed
- HazardClass
- 8
- PackingGroup
- II
- HS Code
- 29161900
- Storage Class
- 8A - Combustible corrosive hazardous materials
- Hazard Classifications
- Eye Dam. 1
Skin Corr. 1B
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Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Danger
- Hazard statements
-
H314Causes severe skin burns and eye damage
- Precautionary statements
-
P260Do not breathe dust/fume/gas/mist/vapours/spray.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P363Wash contaminated clothing before reuse.
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N-Bromosuccinimide Price
Sigma-Aldrich
- Product number
- 303666
- Product name
- 2-Butynoic acid
- Purity
- 98%
- Packaging
- 1g
- Price
- $53.29
- Updated
- 2025/07/31
Sigma-Aldrich
- Product number
- 303666
- Product name
- 2-Butynoic acid
- Purity
- 98%
- Packaging
- 5g
- Price
- $133.95
- Updated
- 2025/07/31
TCI Chemical
- Product number
- T1199
- Product name
- Tetrolic Acid
- Purity
- >98.0%(GC)(T)
- Packaging
- 1g
- Price
- $38
- Updated
- 2025/07/31
TCI Chemical
- Product number
- T1199
- Product name
- Tetrolic Acid
- Purity
- >98.0%(GC)(T)
- Packaging
- 5g
- Price
- $113
- Updated
- 2025/07/31
TCI Chemical
- Product number
- T1199
- Product name
- Tetrolic Acid
- Purity
- >98.0%(GC)(T)
- Packaging
- 25g
- Price
- $455
- Updated
- 2025/07/31
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2-Butynoic acid Chemical Properties,Usage,Production
Chemical Properties
white to yellow powder
Uses
Synthon employed in a variety of reactions, including cycloacylation of phenols to flavones and chromones,1 and cyclization to γ-butyrolactones.2
Uses
2-Butynoic acid is used as an intermediate in organic synthesis and pharmaceuticals. It is used as a synthon in various reactions, which includes cylcoalkylation of phenols to flavones and chromones. It is involved in the cyclization of gamma-butyrolactones. It is also used in the synthesis of Z-trisubstituted olefins through μ-alkylation. It plays an important role in the preparation of chirally pure 1,2,3,4-tetrahydroisoquinoline analogs, which finds application as anti-cancer agents.
General Description
The rotational spectrum of 2-butynoic acid was measured by pulsed supersonic-jet Fourier transform microwave spectroscopy.
2-Butynoic acid Preparation Products And Raw materials
Raw materials
Preparation Products
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2-Butynoic acid Suppliers
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- 021-38751876 15000076078
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- 021-50275764
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- China
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View Lastest Price from 2-Butynoic acid manufacturers
Shaanxi Dideu New Materials Co. Ltd
- Product
- 2-Butynoic acid 590-93-2
- Price
- US $0.00/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- 10000KGS
- Release date
- 2025-05-20
Hebei Chuanghai Biotechnology Co., Ltd
- Product
- 2-Butynoic acid 590-93-2
- Price
- US $1.00/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- 10 mt
- Release date
- 2024-11-15
Henan Aochuang Chemical Co.,Ltd.
- Product
- 2-Butynoic acid 590-93-2
- Price
- US $0.00-0.00/KG
- Min. Order
- 1KG
- Purity
- 98%
- Supply Ability
- 1Ton
- Release date
- 2022-10-08
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