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

More

Less

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)

More

Less

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)

More

Less

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.

More

Less

N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 113018
Product name: Crotonic acid
Purity: 98%
Packaging: 500g
Price: $59.6
Updated: 2025/07/31

Sigma-Aldrich

Product number: 113018
Product name: Crotonic acid
Purity: 98%
Packaging: 3kg
Price: $319
Updated: 2025/07/31

TCI Chemical

Product number: C0416
Product name: Crotonic Acid
Purity: >98.0%(GC)(T)
Packaging: 25g
Price: $51
Updated: 2025/07/31

TCI Chemical

Product number: C0416
Product name: Crotonic Acid
Purity: >98.0%(GC)(T)
Packaging: 100g
Price: $116
Updated: 2025/07/31

TCI Chemical

Product number: C0416
Product name: Crotonic Acid
Purity: >98.0%(GC)(T)
Packaging: 500g
Price: $146
Updated: 2023/01/07

More

Less

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

Cobalt acetate Crotonaldehyde (trans predominantly) Copper (II) acetate monohydrate Crotonic acid Malonic acid

Preparation Products

3-PHENYLBUTYRIC ACID DL-3-Hydroxybutyric acid sodium salt Crotamiton DL-3-HYDROXYBUTYRIC ACID SODIUM SALT

More

Less

Crotonic acid Suppliers

Americas 1 Belgium 1 Canada 1 China 299 Europe 3 France 2 Germany 3 India 13 Japan 3 Slovakia 1 Switzerland 1 Ukraine 1 United Kingdom 6 United States 42 USA 1 Global 378

Yangzhou juhechang Technology Co., Ltd

Tel: 0514-0514-83662002 13073488988
Fax: 0514-83662002
Email: 13073488988@163.com
Country: China
ProdList: 39
Advantage: 58

Hefei Qianhang Pharmaceutical Technology Co., Ltd.

Tel: 13346199520
Email: 1356223173@qq.com
Country: China
ProdList: 61
Advantage: 58

Shanghai Rong Tang Polymer Material Co. , Ltd.

Tel: 18701991744
Email: 18701991744@163.com
Country: China
ProdList: 64
Advantage: 58

Hubei Hongfuda Biotechnology Co., Ltd.

Tel: 19107255884
Email: 2013537414@qq.com
Country: China
ProdList: 500
Advantage: 58

J & K SCIENTIFIC LTD.

Tel: 18210857532; 18210857532
Fax: 86-10-82849933
Email: jkinfo@jkchemical.com
Country: China
ProdList: 96815
Advantage: 76

Meryer (Shanghai) Chemical Technology Co., Ltd.

Tel: 4006356688 18621169109
Fax: 86-21-61259102
Email: market03@meryer.com
Country: China
ProdList: 40228
Advantage: 62

Alfa Aesar

Tel: 400-6106006
Fax: 021-67582001/03/05
Email: saleschina@alfa-asia.com
Country: China
ProdList: 30123
Advantage: 84

TCI (Shanghai) Development Co., Ltd.

Tel: 021-67121386
Fax: 021-67121385
Email: Sales-CN@TCIchemicals.com
Country: China
ProdList: 24529
Advantage: 81

Beijing dtftchem Technology Co., Ltd.

Tel: 010-60275820 13031183356
Fax: 010-60270825
Email: elainezt@sina.com
Country: China
ProdList: 1390
Advantage: 62

Beijing HwrkChemical Technology Co., Ltd

Tel: 18515581800 18501085097
Fax: 010-89508210
Email: sales.bj@hwrkchemical.com
Country: China
ProdList: 9400
Advantage: 55

More

Less

View Lastest Price from Crotonic acid manufacturers

Hebei Chuanghai Biotechnology Co., Ltd

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

Henan Aochuang Chemical Co.,Ltd.

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

Hebei Yanxi Chemical Co., Ltd.

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

107-93-7, Crotonic acidRelated Search:

Fumaronitrile ETHYL 3-AMINOCROTONATE Retinoic acid Maleic acid Ethyl 2-(Chlorosulfonyl)acetate trans,trans-2,4-Undecadienal Fumaric acid Folic acid Glycine tranylcypromine Citric acid Crotonaldehyde (trans predominantly) Ascoric Acid Crotonic acid 3-Amino-2-butenoic acid ethyl ester Isopropyl 3-aminocrotonate 2-Crotonic acid，ethyl ester,Crotonic acid ethyl Methyl 3-aminocrotonate

TRANS-2-BUTENOIC ACID

TRANS-CROTONIC ACID

(2E)-2-Butenoic acid

(e)-2-butenoicaci

(E)-CH3CH=CHCOOH

(E)-Crotonic acid

(e)-crotonicaci

(e)-crotonicacid

1-Carboxypropylene

2-Butenoic acid, (E)-

2-Butenoicacid,(2E)-

(E)-2-BUTENOIC ACID

FEMA 3908

ETHYLIDENEACETIC ACID

BUTENOIC ACID

BUT-2-ENOIC ACID

BETA-METHYLACRYLIC ACID

1-PROPENE-1-CARBOXYLIC ACID

(E)-But-2-enoic acid

CROTONIC ACID pure

Crotonic acid,98%

Trans-2-butemoic acid

CROTONIC ACID CRYSTALLINE

TRANS-CROTONIC ACID, 99+%

CrotonicAcid99%

Crotonic Acid 99%

trans-3-Methylacrylic acid

CROTONIC ACID FOR SYNTHESIS 1 KG

CROTONIC ACID FOR SYNTHESIS 100 G

Crotonic acid, 98% 500GR

alpha-butenoic acid

alpha-crotonic acid

beta-Methacrylic acid

-Butenicacid

Crotonic acid, (E)-

Crotonicacid,(E)-

Soildcrotonicacid

trans-but-2-enoicacid

2-Butenoicacid,(E)-

Crotonate

NSC 8751

Crotonis Fructus

Crotonic acid, 98%, reagent grade

Crotonic Acid &gt

Trans-2-Butemoic Acid/ (E)-2-Butenoic acid

Crotonic acid, GR 99%+

CROTONIC ACID For Synthesis

2-butenoic acid (trans)

Crotonic Acid 97% For Synthesis

Crotonaldehyde Impurity 3

Trans-crotonic acid 98%

Crotonic acid

-Butenicacid

107-93-7

Organic Building Blocks

Building Blocks

C1 to C5