Caffeic acid phenethyl ester
Caffeic acid phenethyl ester (CAPE), CAS 104594-70-9, with the molecular formula C17H16O4 and a molecular weight of 284.31 g/mol, is a naturally occurring compound found in propolis. It functions as a potent antioxidant and free radical scavenger. Research indicates CAPE is a specific inhibitor of the nuclear transcription factor NF-κB and shows significant effects on cellular processes, including inflammation and cell proliferation.
- IUPAC
- CAPE

NF-κB Inhibition
Caffeic acid phenethyl ester is recognised as a specific inhibitor of the nuclear transcription factor NF-κB, a key regulator in inflammatory and immune responses.
Antioxidant and Anti-inflammatory Activity
CAPE exhibits significant antioxidant properties and has been shown to suppress the lipoxygenase pathway of arachidonic acid metabolism, contributing to its anti-inflammatory effects.
Cellular Proliferation and Apoptosis Studies
This compound is investigated for its role in inhibiting the proliferation of transformed cells and for its ability to induce apoptosis in transformed fibroblasts.
HIV-1 Integrase Inhibition
Studies have demonstrated that Caffeic acid phenethyl ester acts as an inhibitor of HIV-1 integrase, an enzyme crucial for viral replication.
| Molecular weight | 284.31 |
|---|---|
| Empirical formula | C17H16O4 |
| Assay | ≥97% (HPLC) |
| Form | powder |
| Colour | off-white |
| Solubility | ethyl acetate: soluble50 mg/mLDMSO: solubleethanol: soluble |
| Storage temperature | −20°C |
| Application | Caffeic acid phenethyl ester (CAPE) is the active component of propolis, a honeybee hive product.1 Caffeic acid phenethyl ester is a specific inhibitor of the nuclear transcription factor, NF-κB.2 CAPE has been shown to significantly suppress the lipoxygenase pathway of arachidonic acid metabolism during inflammation.3,4 Caffeic acid phenethyl ester inhibits HIV-1 integrase,5,6 and also inhibits proliferation of transformed cells.7,8 It induces apoptosis in transformed fibroblasts,9 and interferes with EGF signal transduction affecting both protein kinase C and ornithine decarboxylase activity.7 |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Gene Information | human ... NFKB2(4791) |
|---|---|
| Storage Condition | protect from light |
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Caffeic acid phenethyl ester used for?
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Caffeic acid phenethyl ester is primarily used in research as an inhibitor of NF-κB, an antioxidant, a free radical scavenger, and for studies on cell proliferation, apoptosis, and HIV-1 integrase inhibition.
What are the CAS number and formula for Caffeic acid phenethyl ester?
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The CAS number for Caffeic acid phenethyl ester is 104594-70-9, and its empirical formula is C17H16O4.
What grade and purity does Tech Serve Solutions supply for Caffeic acid phenethyl ester?
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Tech Serve Solutions supplies Caffeic acid phenethyl ester with an assay of ≥97% (HPLC). This product is intended for research and laboratory use and is not represented as USP, BP, EP, or pharmaceutical grade.
How should Caffeic acid phenethyl ester be handled and stored?
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Caffeic acid phenethyl ester (CAS 104594-70-9) is a Warning substance (GHS07) with hazards H315, H319, and H335, indicating skin, eye, and respiratory irritation. Use appropriate personal protective equipment including a dust mask (N95), eyeshields, and gloves. Store in a cool, dry place, protected from light, ideally at -20°C.
Is Caffeic acid phenethyl ester packed and exported by Tech Serve Solutions?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including Caffeic acid phenethyl ester.
How can I request a quote or sample for Caffeic acid phenethyl ester?
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To request a quote or sample for Caffeic acid phenethyl ester, please contact the Tech Serve Solutions sales team through our website or by phone.
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