- Crotonic acid
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- $10.00 / 1KG
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2025-12-03
- CAS:107-93-7
- Min. Order: 1KG
- Purity: 99%
- Supply Ability: 10 mt
- TRANS-2-BUTENOIC ACID
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- $0.00 / 25kg
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2025-12-01
- CAS:107-93-7
- Min. Order: 1kg
- Purity: 99%
- Supply Ability: 10000KGS
- Crotonic acid
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- $40.00 / 1kg
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2025-06-20
- CAS:107-93-7
- Min. Order: 1kg
- Purity: 0.99
- Supply Ability: 10 tons
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| | Crotonic acid Basic information |
| | Crotonic acid Chemical Properties |
| 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) | | FEMA | 3908 | (E)-2-BUTENOIC ACID | | refractive index | 1.4228 | | Fp | 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) |
| 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) |
| | Crotonic acid Usage And Synthesis |
| 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. | | 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. | | 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. | | 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 |
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