| Record Information | 
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| Version | 5.0 | 
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| Status | Detected and Quantified | 
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| Creation Date | 2005-11-16 15:48:42 UTC | 
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| Update Date | 2023-02-21 17:14:57 UTC | 
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| HMDB ID | HMDB0000567 | 
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| Secondary Accession Numbers |  | 
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| Metabolite Identification | 
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| Common Name | Cinnamic acid | 
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| Description | Cinnamic acid, also known as (Z)-cinnamate or 3-phenyl-acrylate, belongs to the class of organic compounds known as cinnamic acids. These are organic aromatic compounds containing a benzene and a carboxylic acid group forming 3-phenylprop-2-enoic acid. Cinnamic acid can be obtained from oil of cinnamon, or from balsams such as storax. Cinnamic acid is a weakly acidic compound (based on its pKa). It is a white crystalline compound that is slightly soluble in water, and freely soluble in many organic solvents. Cinnamic acid exists in all living organisms, ranging from bacteria to plants to humans. Outside of the human body, cinnamic acid has been detected, but not quantified in, chinese cinnamons. In plants, cinnamic acid is a central intermediate in the biosynthesis of myriad natural products include lignols (precursors to lignin and lignocellulose), flavonoids, isoflavonoids, coumarins, aurones, stilbenes, catechin, and phenylpropanoids. | 
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| Structure | InChI=1S/C9H8O2/c10-9(11)7-6-8-4-2-1-3-5-8/h1-7H,(H,10,11)/b7-6- | 
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| Synonyms | | Value | Source | 
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 | (2Z)-3-Phenyl-2-propenoic acid | ChEBI |  | (2Z)-3-Phenylacrylic acid | ChEBI |  | (Z)-3-Phenyl-2-propenoic acid | ChEBI |  | (Z)-Cinnamic acid | ChEBI |  | cis-beta-Carboxystyrene | ChEBI |  | cis-Zimtsaeure | ChEBI |  | (2Z)-3-Phenyl-2-propenoate | Generator |  | (2Z)-3-Phenylacrylate | Generator |  | (Z)-3-Phenyl-2-propenoate | Generator |  | (Z)-Cinnamate | Generator |  | cis-b-Carboxystyrene | Generator |  | cis-Β-carboxystyrene | Generator |  | Cinnamate | Generator |  | Cinnamic acid, 1-(13)C-labeled CPD | HMDB |  | Cinnamic acid, 13C-labeled CPD | HMDB |  | trans-Cinnamic acid | HMDB |  | (e)-Cinnamic acid, 2-(14)C-labeled CPD | HMDB |  | Cinnamic acid, (Z)-isomer | HMDB |  | Cinnamic acid, (trans)-(e)-isomer | HMDB |  | Cinnamic acid, 14C-labeled CPD | HMDB |  | Cinnamic acid, 3H-labeled CPD (Z)-isomer | HMDB |  | Cinnamic acid, sodium salt | HMDB |  | Cinnamic acid, sodium salt(Z)-isomer | HMDB |  | Sodium cinnamate | HMDB |  | e-Z Cinnamic acid | HMDB |  | Cinnamic acid, 2-(13)C-labeled CPD | HMDB |  | Cinnamic acid, 2-(14)C-labeled CPD | HMDB |  | Cinnamic acid, 3-(14)C-labeled CPD | HMDB |  | Cinnamic acid, radical ion(1-) | HMDB |  | e-Cinnamic acid | HMDB |  | Cinnamic acid, 1-14C-labeled CPD | HMDB |  | Cinnamic acid, 14C-labeled CPD (e)-isomer | HMDB |  | Cinnamic acid, 3H-labeled CPD (e)-isomer | HMDB |  | Cinnamic acid, ion(1-) | HMDB |  | Cinnamic acid, ion(1-)-(e)-isomer | HMDB |  | Cinnamic acid, nickel (+2) salt | HMDB |  | Cinnamic acid, potassium salt | HMDB |  | Cinnamic acid, sodium salt(e)-isomer | HMDB |  | Cinnamic acid, zinc salt(e)-isomer | HMDB |  | Tritium labeled (e)-cinnamic acid | HMDB |  | Tritium labeled (Z)-cinnamic acid | HMDB |  | (e)-3-Phenyl-2-propenoate | HMDB |  | (e)-3-Phenyl-2-propenoic acid | HMDB |  | 3-Phenyl-2-propenoate | HMDB |  | 3-Phenyl-2-propenoic acid | HMDB |  | 3-Phenyl-acrylate | HMDB |  | 3-Phenyl-acrylic acid | HMDB |  | 3-Phenylacrylate | HMDB |  | 3-Phenylacrylic acid | HMDB |  | 3-Phenylpropenoate | HMDB |  | 3-Phenylpropenoic acid | HMDB |  | Benzenepropenoate | HMDB |  | Benzenepropenoic acid | HMDB |  | Benzylideneacetic acid | HMDB |  | beta-Phenylacrylic acid | HMDB |  | Cinnamylic acid | HMDB |  | Phenylacrylate | HMDB |  | Phenylacrylic acid | HMDB |  | cis-Cinnamate | HMDB |  | (Z)-3-Phenylacrylic acid | HMDB |  | Allocinnamic acid | HMDB |  | Isocinnamic acid | HMDB |  | cis-Cinnamic acid | HMDB |  | Β-phenylacrylic acid | HMDB |  | Cinnamic acid | HMDB | 
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| Chemical Formula | C9H8O2 | 
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| Average Molecular Weight | 148.1586 | 
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| Monoisotopic Molecular Weight | 148.0524295 | 
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| IUPAC Name | (2Z)-3-phenylprop-2-enoic acid | 
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| Traditional Name | cis-cinnamic acid | 
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| CAS Registry Number | 102-94-3 | 
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| SMILES | OC(=O)\C=C/C1=CC=CC=C1 | 
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| InChI Identifier | InChI=1S/C9H8O2/c10-9(11)7-6-8-4-2-1-3-5-8/h1-7H,(H,10,11)/b7-6- | 
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| InChI Key | WBYWAXJHAXSJNI-SREVYHEPSA-N | 
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| Chemical Taxonomy | 
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| Description | Belongs to the class of organic compounds known as cinnamic acids. These are organic aromatic compounds containing a benzene and a carboxylic acid group forming 3-phenylprop-2-enoic acid. | 
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| Kingdom | Organic compounds | 
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| Super Class | Phenylpropanoids and polyketides | 
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| Class | Cinnamic acids and derivatives | 
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| Sub Class | Cinnamic acids | 
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| Direct Parent | Cinnamic acids | 
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| Alternative Parents |  | 
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| Substituents | Cinnamic acidStyreneBenzenoidMonocyclic benzene moietyMonocarboxylic acid or derivativesCarboxylic acidCarboxylic acid derivativeOrganic oxygen compoundOrganic oxideHydrocarbon derivativeOrganooxygen compoundCarbonyl groupAromatic homomonocyclic compound
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| Molecular Framework | Aromatic homomonocyclic compounds | 
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| External Descriptors |  | 
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| Ontology | 
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| Not Available | Not Available | 
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| Physical Properties | 
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| State | Solid | 
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| Experimental Molecular Properties | | Property | Value | Reference | 
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 | Melting Point | 132 - 135 °C | Not Available |  | Boiling Point | 265.00 to  266.00 °C. @  760.00 mm Hg (est) | The Good Scents Company Information System |  | Water Solubility | 0.57 mg/mL at 25 °C | Not Available |  | LogP | 2.13 | HANSCH,C ET AL. (1995) | 
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| Experimental Chromatographic Properties | Experimental Collision Cross Sections| Adduct Type | Data Source | CCS Value (Å2) | Reference | 
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 | [M+H]+ | Baker | 145.31 | 30932474 | 
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| Predicted Molecular Properties |  | 
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| Predicted Chromatographic Properties | Predicted Collision Cross SectionsPredicted Retention Times Underivatized| Chromatographic Method | Retention Time | Reference | 
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 | Measured using a Waters Acquity ultraperformance liquid chromatography (UPLC) ethylene-bridged hybrid (BEH) C18 column (100 mm × 2.1 mm; 1.7 μmparticle diameter). Predicted by Afia on May 17, 2022. Predicted by Afia on May 17, 2022. | 5.24 minutes | 32390414 |  | Predicted by Siyang on May 30, 2022 | 12.449 minutes | 33406817 |  | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 5.54 minutes | 32390414 |  | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 1951.8 seconds | 40023050 |  | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 415.8 seconds | 40023050 |  | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 152.8 seconds | 40023050 |  | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 267.6 seconds | 40023050 |  | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 221.2 seconds | 40023050 |  | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 472.4 seconds | 40023050 |  | BfG_NTS_RP1 =Agilent Zorbax Eclipse Plus C18 (2.1 mm x 150 mm, 3.5 um) with Water:ACN and 0.1% Formic Acid | 496.3 seconds | 40023050 |  | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 127.4 seconds | 40023050 |  | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 1103.7 seconds | 40023050 |  | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 418.7 seconds | 40023050 |  | UFZ_Phenomenex = Kinetex Core-Shell C18 2.6 um, 3.0 x 100 mm, Phenomenex with Water:MeOH and 0.1% Formic Acid | 1139.2 seconds | 40023050 |  | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 286.4 seconds | 40023050 |  | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 379.5 seconds | 40023050 |  | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 445.5 seconds | 40023050 |  | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 317.9 seconds | 40023050 |  | Meister zic-pHILIC pH9.3 = Merck SeQuant ZIC-pHILIC column with ACN:Water 5mM NH4Ac pH9.3 and 5mM ammonium acetate in water | 57.7 seconds | 40023050 | 
 Predicted Kovats Retention IndicesUnderivatizedDerivatized | 
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