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Molecule
P-Coumaric Acid
CAS: 501-98-4 · C9H8O3
2D Structure
3D Structure
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Basic Information
- CAS Registry Number
- 501-98-4
- Molecular Formula
- C9H8O3
- Molecular Mass
- 164.16 g/mol
Identifiers
CAS Registry Number
501-98-4
SMILES
O=C(O)/C=C/c1ccc(O)cc1
InChI Key
NGSWKAQJJWESNS-ZZXKWVIFSA-N
InChI
InChI=1S/C9H8O3/c10-8-4-1-7(2-5-8)3-6-9(11)12/h1-6,10H,(H,11,12)/b6-3+
Names and Synonyms
- P-Coumaric Acid Synonym
- 2-Propenoic acid, 3-(4-hydroxyphenyl)-, (2E)- Synonym
- Cinnamic acid, p-hydroxy-, (E)- Synonym
- 2-Propenoic acid, 3-(4-hydroxyphenyl)-, (E)- Synonym
- (2E)-3-(4-Hydroxyphenyl)-2-propenoic acid Synonym
- Naringeninic acid Synonym
- trans-p-Coumaric acid Synonym
- (E)-p-Coumaric acid Synonym
- trans-p-Hydroxycinnamic acid Synonym
- (E)-p-Hydroxycinnamic acid Synonym
- trans-4-Hydroxycinnamic acid Synonym
- p-Hydroxy-trans-cinnamic acid Synonym
- (E)-3-(4-Hydroxyphenyl)-2-propenoic acid Synonym
- trans-4-Coumaric acid Synonym
- p-trans-Coumaric acid Synonym
- (E)-4-Hydroxycinnamic acid Synonym
- trans-3-(4-Hydroxyphenyl)-2-propenoic acid Synonym
- (E)-3-(4-Hydroxyphenyl)acrylic acid Synonym
- trans-p-Coumarinic acid Synonym
- (2E)-3-(4-Hydroxyphenyl)prop-2-enoic acid Synonym
- (E)-3-(4-Hydroxyphenyl)acrylic acid Synonym
All Properties
Comprehensive physical and chemical properties
| Property | Value | Source |
|---|---|---|
| Molecular Mass | 164.16 g/mol | CAS Common Chemistry |
| Wikipedia Url | https://en.wikipedia.org/wiki/P-Coumaric_acid | CAS Common Chemistry |
| Canonical SMILES | O=C(O)C=CC1=CC=C(O)C=C1 | CAS Common Chemistry |
| InChI | InChI=1S/C9H8O3/c10-8-4-1-7(2-5-8)3-6-9(11)12/h1-6,10H,(H,11,12)/b6-3+ | CAS Common Chemistry |
| InChI Key | InChIKey=NGSWKAQJJWESNS-ZZXKWVIFSA-N | CAS Common Chemistry |
| Melting Point | 214 °C (decomp) | CAS Common Chemistry |
| Name | trans-4-Hydroxycinnamic acid | CAS Common Chemistry |
| p-Coumaric acid | CAS Common Chemistry | |
| Heavy Atom Count | 12 | RDKit |
| Hydrogen Bond Acceptors | 2 | RDKit |
| Hydrogen Bond Donors | 2 | RDKit |
| Rotatable Bonds | 2 | RDKit |
| Aromatic Ring Count | 1 | RDKit |
| Topological Polar Surface Area | 57.53 Ų | RDKit |
| LogP | 1.49 | RDKit |
| Molar Refractivity | 44.776600000000016 cm³/mol | RDKit |
| Ring Count | 1 | RDKit |
| Formal Charge | 0 | RDKit |
| Fraction Csp3 | 0.0 | RDKit |
| Exact Mass | 164.047344116 g/mol | RDKit |
Spectral Data
NMR, IR, and Mass spectral data
Predicting NMR spectra...
10 ppm
9
8
7
6
5
4
3
2
1
0 ppm
| Shift (ppm) | Multiplicity | Integration | Assignment |
|---|
200 ppm
180
160
140
120
100
80
60
40
20
0 ppm
| Shift (ppm) | DEPT | Assignment |
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Note: These NMR spectra are predicted computationally and may differ from experimental data. Predictions are based on chemical environment analysis.
External Resources
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MW = 164.16 g/mol. Edit any field — others recompute live.
Related
Related molecules
Other compounds with formula C9H8O3.
