(E)-4-(4-Bromophenyl)-4-oxobut-2-enoic acid
Also known as: (2E)-4-(4-bromophenyl)-4-oxobut-2-enoic acid, 3-(4-bromobenzoyl)acrylic acid, trans-3-(4-bromobenzoyl)acrylic acid, Nsc39971, MFCD00075810, TIMTEC-BB SBB000940
(E)-4-(4-Bromophenyl)-4-oxobut-2-enoic acid (CAS 20972-38-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H7BrO3 and a molecular weight of 255.06500 g/mol. Key properties include a boiling point of 396.5ºC at 760 mmHg, a density of 1.61g/cm3 and a flash point of 193.6ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 20972-38-7
- Jingsj CID
- J-1449875-0
- Molecular Formula
- C10H7BrO3
- Molecular Weight
- 255.06500 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 396.5ºC at 760 mmHg |
|---|---|
| Density | 1.61g/cm3 |
| Flash Point | 193.6ºC |
| Exact Mass | 253.95800 |
| PSA | 54.37000 |
| LogP | 2.27260 |
| Vapor Pressure | 5.35E-07mmHg at 25°C |
| Refractive Index | 1.609 |
| Storage Conditions | Store at room temperature |
Frequently Asked Questions
What is the CAS number of (E)-4-(4-Bromophenyl)-4-oxobut-2-enoic acid?
The CAS number of (E)-4-(4-Bromophenyl)-4-oxobut-2-enoic acid is 20972-38-7.
What are the molecular formula and molecular weight of (E)-4-(4-Bromophenyl)-4-oxobut-2-enoic acid?
(E)-4-(4-Bromophenyl)-4-oxobut-2-enoic acid has molecular formula C10H7BrO3 and molecular weight 255.06500 g/mol.
What are the upstream and downstream products of (E)-4-(4-Bromophenyl)-4-oxobut-2-enoic acid?
For (E)-4-(4-Bromophenyl)-4-oxobut-2-enoic acid, Upstream Products: 4'-Bromoacetophenone, Glyoxylic acid, Maleic anhydride; Downstream Products: 3-(4-Bromobenzoyl)propionic acid, Methyl 4-(4-bromophenyl)-4-oxobutanoate, 3-(4-bromophenyl)-6-chloropyridazine.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "(E)-4-(4-Bromophenyl)-4-oxobut-2-enoic acid (CAS 20972-38-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1449875-0 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.