Crotonic acid
- Product Name
- Crotonic acid
- CAS No.
- 107-93-7
- Chemical Name
- Crotonic acid
- Synonyms
- (E)-But-2-enoic acid;Crotonate;BUT-2-ENOIC ACID;2-Butenoic acid, (E)-;BUTENOIC ACID;(E)-2-BUTENOIC ACID;TRANS-CROTONIC ACID;NSC 8751;(e)-2-butenoicaci;(2E)-2-Butenoic acid
- CBNumber
- CB6145402
- Molecular Formula
- C4H6O2
- Formula Weight
- 86.09
- MOL File
- 107-93-7.mol
Crotonic acid Property
- Melting point:
- 70-72 °C (lit.)
- Boiling point:
- 180-181 °C (lit.)
- Density
- 1.027 g/mL at 25 °C (lit.)
- bulk density
- 543kg/m3
- vapor density
- 2.97 (vs air)
- vapor pressure
- 0.19 mm Hg ( 20 °C)
- refractive index
- 1.4228
- FEMA
- 3908 | (E)-2-BUTENOIC ACID
- Flash point:
- 190 °F
- storage temp.
- Store below +30°C.
- solubility
- H2O: soluble
- pka
- 4.69(at 25℃)
- form
- Crystalline Flakes
- color
- White to light yellow
- PH
- 3 (10g/l, H2O, 20℃)
- Odor
- at 1.00 %. milky
- Odor Type
- milky
- explosive limit
- 15.1%, 171°F
- Water Solubility
- 94 g/L (25 ºC)
- Merck
- 14,2597
- JECFA Number
- 1371
- BRN
- 1719943
- InChIKey
- LDHQCZJRKDOVOX-NSCUHMNNSA-N
- LogP
- 0.85 at 25℃
- CAS DataBase Reference
- 107-93-7(CAS DataBase Reference)
- NIST Chemistry Reference
- Crotonic acid(107-93-7)
- EPA Substance Registry System
- 2-Butenoic acid, (2E)- (107-93-7)
Safety
- Hazard Codes
- C,N,Xi
- Risk Statements
- 21/22-34-50/53-36/37/38
- Safety Statements
- 26-36/37/39-45-61-37/39
- RIDADR
- UN 2823 8/PG 3
- WGK Germany
- 3
- RTECS
- GQ2900000
- Autoignition Temperature
- 744 °F
- HazardClass
- 8
- PackingGroup
- III
- HS Code
- 29161940
- Toxicity
- LD50 orally in rats: 1.0 g/kg (Smyth, Carpenter)
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Danger
- Hazard statements
-
H318Causes serious eye damage
- Precautionary statements
-
P280Wear protective gloves/protective clothing/eye protection/face protection.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
N-Bromosuccinimide Price
- Product number
- 113018
- Product name
- Crotonic acid
- Purity
- 98%
- Packaging
- 500g
- Price
- $59.6
- Updated
- 2025/07/31
- Product number
- 113018
- Product name
- Crotonic acid
- Purity
- 98%
- Packaging
- 3kg
- Price
- $319
- Updated
- 2025/07/31
- Product number
- C0416
- Product name
- Crotonic Acid
- Purity
- >98.0%(GC)(T)
- Packaging
- 25g
- Price
- $51
- Updated
- 2025/07/31
- Product number
- C0416
- Product name
- Crotonic Acid
- Purity
- >98.0%(GC)(T)
- Packaging
- 100g
- Price
- $116
- Updated
- 2025/07/31
- Product number
- C0416
- Product name
- Crotonic Acid
- Purity
- >98.0%(GC)(T)
- Packaging
- 500g
- Price
- $146
- Updated
- 2023/01/07
Crotonic acid Chemical Properties,Usage,Production
Chemical Properties
Crotonic acid is a white to light yellow crystalline flakes with a pungent odor. It is moderately soluble in water but highly soluble in organic solvents such as ethanol and ether.
Uses
trans-Crotonic acid is used in the copolymerization of crotonic acid hydrogel systems by using gamma-rays. The crosslinked copolymeric crotonic acid hydrogels release fertilizers and drugs that help to prevent environmental pollution.
Preparation
(E)-2-Butenoic acid may be formed by oxidation of crotonaldehyde, 2-butenal. If (Z)-butenoic acid is heated at 180°C, it is converted to (E)-2-butenoid acid.
Definition
ChEBI: Crotonic acid is a but-2-enoic acid with a trans- double bond at C-2. It has been isolated from Daucus carota. It has a role as a plant metabolite. It is a conjugate acid of a crotonate.
Application
Crotonic acid is an unsaturated fatty acid containing a double bond and a carboxyl group in its molecular structure, rendering it highly reactive. It serves various industrial applications, primarily in the preparation of resins, fungicides, surface coatings, plasticisers, and pharmaceuticals.
General Description
Crotonic acid undergoes esterification with butan-2-ol by following second order reaction kinetics.
Flammability and Explosibility
Not classified
storage
Store at RT
Purification Methods
Distil the acid under reduced pressure and/or recrystallise it from pet ether (b 60-80o) or water, or by partial freezing of the melt. [Beilstein 2 IV 1498.]
References
[1] VAHIDEH ELHAMI Mark A H, BOELO SCHUUR* Crotonic Acid Production by Pyrolysis and Vapor Fractionation of Mixed Microbial Culture-Based Poly(3-hydroxybutyrate-co-3-hydroxyvalerate)[J]. Industrial & Engineering Chemistry Research, 2023, 62 2: 916-923. DOI:10.1021/acs.iecr.2c03791.
[2] ZHIQUN YU*, JIADI ZHOU Continuous Flow Synthesis of Crotonic Acid from Crotonaldehyde[J]. Organic Process Research & Development, 2024, 28 5: 1773-1782. DOI:10.1021/acs.oprd.3c00376.
[3] KANG S, CHEN R, FU J, et al. Catalyst-free valorization of poly-3-hydroxybutyrate to crotonic acid†[J]. Reaction Chemistry & Engineering, 2021, 10: 1791-1795. DOI:10.1039/D1RE00273B.
Crotonic acid Preparation Products And Raw materials
Raw materials
Preparation Products
Crotonic acid Suppliers
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- Country
- Germany
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- 6831
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View Lastest Price from Crotonic acid manufacturers
- Product
- Crotonic acid 107-93-7
- Price
- US $10.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 10 mt
- Release date
- 2024-11-21
- Product
- Crotonic acid 107-93-7
- Price
- US $0.00-0.00/kg
- Min. Order
- 1kg
- Purity
- 98%
- Supply Ability
- 1Ton
- Release date
- 2022-09-30
- Product
- Crotonic acid 107-93-7
- Price
- US $40.00/kg
- Min. Order
- 1kg
- Purity
- 0.99
- Supply Ability
- 10 tons
- Release date
- 2024-05-09