4-BROMOCROTONIC ACID
- Product Name
- 4-BROMOCROTONIC ACID
- CAS No.
- 13991-36-1
- Chemical Name
- 4-BROMOCROTONIC ACID
- Synonyms
- 4-bromocrotonic aci;4-BROMOCROTONIC ACID;r-bromocrotonic acid;Remazolam impurity 4;Neratinib Impurity 25;Remimazolam Impurity 4;4-BroMobut-2-enoic acid;gamma-Bromocrotonic acid;(E)-4-Bromocrotonic acid;4-Bromocrotonic Acid >
- CBNumber
- CB1669800
- Molecular Formula
- C4H5BrO2
- Formula Weight
- 164.99
- MOL File
- 13991-36-1.mol
4-BROMOCROTONIC ACID Property
- 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
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Danger
- Hazard statements
-
H290May be corrosive to metals
H314Causes severe skin burns and eye damage
- Precautionary statements
-
P234Keep only in original container.
P260Do not breathe dust/fume/gas/mist/vapours/spray.
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P390Absorb spillage to prevent material damage.
P405Store locked up.
P406Store in corrosive resistant/… container with a resistant inner liner.
P501Dispose of contents/container to..…
N-Bromosuccinimide Price
- Product number
- B2298
- Product name
- 4-Bromocrotonic Acid
- Purity
- >98.0%(GC)(T)
- Packaging
- 1g
- Price
- $199
- Updated
- 2025/07/31
- Product number
- B2298
- Product name
- 4-Bromocrotonic Acid
- Purity
- >98.0%(GC)(T)
- Packaging
- 5g
- Price
- $597
- Updated
- 2025/07/31
- Product number
- B682580
- Product name
- (E)-4-BromocrotonicAcid
- Packaging
- 5g
- Price
- $525
- Updated
- 2021/12/16
- Product number
- B682580
- Product name
- (E)-4-BromocrotonicAcid
- Packaging
- 1g
- Price
- $140
- Updated
- 2021/12/16
- Product number
- 180966
- Product name
- (E)-4-Bromobut-2-enoic acid
- Purity
- 95%+
- Packaging
- 1g
- Price
- $150
- Updated
- 2021/12/16
4-BROMOCROTONIC ACID Chemical Properties,Usage,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
Preparation Products
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View Lastest Price from 4-BROMOCROTONIC ACID manufacturers
- Product
- 4-BROMOCROTONIC ACID 13991-36-1
- Price
- US $50.00/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- 1000tons
- Release date
- 2023-08-03
- Product
- 4-bromocrotonic acid 13991-36-1
- Price
- US $200.00/g
- Min. Order
- 10g
- Purity
- 99%
- Supply Ability
- 1000t/month
- Release date
- 2022-11-10
- Product
- 4-BROMOCROTONIC ACID 13991-36-1
- Price
- US $15.00-10.00/KG
- Min. Order
- 1KG
- Purity
- 99%+ HPLC
- Supply Ability
- Monthly supply of 1 ton
- Release date
- 2021-06-27