4-Bromocrotonic acid
- CAS No.
- 13991-36-1
- Chemical Name:
- 4-Bromocrotonic acid
- Synonyms
- 4-BroMobut-2-enoic acid;4-bromocrotonic aci;r-bromocrotonic acid;Remazolam impurity 4;4-Bromocrotonic acid;Neratinib Impurity 25;Remimazolam Impurity 4;gamma-Bromocrotonic acid;(E)-4-Bromocrotonic acid;4-Bromocrotonic Acid >
- CBNumber:
- CB1669800
- Molecular Formula:
- C4H5BrO2
- Molecular Weight:
- 164.98
- MDL Number:
- MFCD00082701
- MOL File:
- 13991-36-1.mol
- TDS File:
- TDS
| Melting point | 74 °C |
|---|---|
| Boiling point | 288℃ |
| Density | 1.718 |
| Flash point | 128℃ |
| storage temp. | Inert atmosphere,2-8°C |
| solubility | Chloroform (Sparingly), Methanol (Slightly) |
| form | Solid |
| pka | 4.13±0.10(Predicted) |
| color | Pale Yellow to Pale Beige |
| InChI | InChI=1S/C4H5BrO2/c5-3-1-2-4(6)7/h1-2H,3H2,(H,6,7)/b2-1+ |
| InChIKey | DOTGZROJTAUYFQ-OWOJBTEDSA-N |
| SMILES | C(O)(=O)/C=C/CBr |
| CAS DataBase Reference | 13991-36-1 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS05 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H290-H314 | |||||||||
| Precautionary statements | P234-P260-P264-P280-P301+P330+P331+P310-P303+P361+P353+P310+P363-P304+P340+P310-P305+P351+P338+P310-P390-P405-P406-P501 | |||||||||
| Risk Statements | 34 | |||||||||
| Safety Statements | 36/37/39 | |||||||||
| RIDADR | 3261 | |||||||||
| HazardClass | 8 | |||||||||
| PackingGroup | III | |||||||||
| HS Code | 29161900 | |||||||||
| NFPA 704 |
|
4-Bromocrotonic acid price More Price(41)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| TCI Chemical | B2298 | 4-Bromocrotonic Acid >98.0%(GC)(T) | 13991-36-1 | 1g | $115 | 2026-04-30 | Buy |
| TCI Chemical | B2298 | 4-Bromocrotonic Acid >98.0%(GC)(T) | 13991-36-1 | 5g | $378 | 2026-04-30 | Buy |
| Biosynth | FB46446 | 4-Bromocrotonic acid - min 98% | 13991-36-1 | 10g | $242 | 2026-06-04 | Buy |
| Biosynth | FB46446 | 4-Bromocrotonic acid - min 98% | 13991-36-1 | 25g | $378.25 | 2026-06-04 | Buy |
| Biosynth | FB46446 | 4-Bromocrotonic acid - min 98% | 13991-36-1 | 50g | $605 | 2026-06-04 | Buy |
4-Bromocrotonic acid Chemical Properties, Uses, Production
Chemical Properties
White solid
Uses
(E)-4-Bromocrotonic Acid acts as a fatty acid blocking agent. It is used to selectively adjust levels of long-chain acyl CoA and carnitine in aerobic and ischemic myocardium. It is also an intermediate used to prepare tetrahydropyridothienopyrimidine derivatve with antiproliferative activities.
Synthesis
107-93-7
13991-36-1
General procedure for the synthesis of (E)-4-bromobut-2-enoic acid from crotonic acid: a mixture of (E)-but-2-enoic acid (10.00 g, 116.16 mmol), N-bromosuccinimide (NBS, 1.02 g, 118.48 mmol), and 2,2'-azobis(2-methylpropionitrile) (AIBN, 381.49 mg, 2.32 mmol ) were dissolved in carbon tetrachloride (CCl4, 120 mL) and the reaction was stirred at 90 °C for 4 hours. After completion of the reaction, the mixture was filtered and the filtrate was concentrated. The residue was recrystallized with hexane to afford the target product (E)-4-bromobut-2-enoic acid (19.17 g, 42.2% yield).
References
[1] Archiv der Pharmazie, 2014, vol. 347, # 8, p. 552 - 558
[2] Bioorganic and Medicinal Chemistry, 2014, vol. 22, # 7, p. 2366 - 2378
[3] Patent: CN107556289, 2018, A. Location in patent: Paragraph 0112; 0114; 0115; 0116
[4] Journal of Organic Chemistry, 2011, vol. 76, # 11, p. 4467 - 4481
[5] Tetrahedron Letters, 2018, vol. 59, # 18, p. 1776 - 1778
4-Bromocrotonic acid Preparation Products And Raw materials
Raw materials
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Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Suzhou Ruiyuanda New Materials Co., Ltd | 0510-15312278075 15312278075 | xxl_hotmail@163.com | China | 228 | 58 |
| Mianyang Vandino Pharmaceutical Technology Co., Ltd. | 15681201579 15861805752 | 1755695756@qq.com | China | 291 | 58 |
| Wuhan Yuqing Jiaheng Pharmaceutical Co., Ltd | 027-83850128 18207128853 | 3860188266@qq.com | China | 992 | 58 |
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| Meryer (Shanghai) Chemical Technology Co., Ltd. | 4006356688 18621169109 | market03@meryer.com | China | 40202 | 62 |
| New Energy Chemicals | 0515-82159099 13770142076 | info@njuchem.com | China | 251 | 65 |
| TCI (Shanghai) Development Co., Ltd. | 021-67121386 | Sales-CN@TCIchemicals.com | China | 24512 | 81 |
| Energy Chemical | 400-0056266 | sales8178@energy-chemical.com | China | 44850 | 61 |
| Beijing Ouhe Technology Co., Ltd | 13552068683 13522913783 | 2355560935@qq.com | China | 11777 | 60 |
| Jia Xing Isenchem Co.,Ltd | 0573-85285100 18627885956 | isenchem@163.com | China | 9389 | 66 |
View Latest Price from 4-Bromocrotonic acid manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-07-21 | 4-BROMOCROTONIC ACID
13991-36-1
|
1kg | 98% | 1000kgs | Shaanxi Dideu New Materials Co. Ltd | ||
 |
2023-08-04 | 4-BROMOCROTONIC ACID
13991-36-1
|
$50.00 | 1kg | 99% | 1000tons | Henan Bao Enluo International TradeCo.，LTD | |
 |
2022-11-11 | 4-bromocrotonic acid
13991-36-1
|
$200.00 | 10g | 99% | 1000t/month | Hebei Best Biological Technology Co., Ltd |
-
- 4-BROMOCROTONIC ACID
13991-36-1
- $0.00
- 98%
- Shaanxi Dideu New Materials Co. Ltd
-
- 4-BROMOCROTONIC ACID
13991-36-1
- $50.00
- 99%
- Henan Bao Enluo International TradeCo.，LTD
-
- 4-bromocrotonic acid
13991-36-1
- $200.00
- 99%
- Hebei Best Biological Technology Co., Ltd
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