Molekula
4-Hydroxycinnamic acid
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
4-Hydroxycinnamic acid is an organic compound belonging to the hydroxycinnamic acid family, widely used in pharmaceuticals, food preservation, and as a precursor in the synthesis of various bioactive compounds, including antioxidants and UV filters. It appears as a white to pale yellow crystalline powder, soluble in organic solvents. This chemical has a CAS number of 501-98-4, a molecular formula of HOC6H4CH=CHCO2H, and a molecular weight of 164.16. It should be stored at ambient conditions and handled with caution, as indicated by its "Warning" signal word. Molekula supplies 4-Hydroxycinnamic acid from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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25 g — $95.00 per pack
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100 g — $186.50 per pack
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Pale yellow/ beige powder |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Acid |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Melting Point | 211.5 °C |
Source: PubChem CID 637542 (Human Metabolome Database (HMDB))
Identification
| Property | Value |
|---|---|
| SKU | 86815064 |
| CAS Number | 501-98-4 |
| IUPAC Name | (E)-3-(4-hydroxyphenyl)prop-2-enoic acid |
| EC Number | 231-000-0 |
| Molecular Formula | HOC6H4CH=CHCO2H |
| Molecular Weight | 164.16 |
| Exact Mass | 164.0473 |
| SMILES | C1=CC(=CC=C1/C=C/C(=O)O)O |
| InChIKey | 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+ |
| PubChem CID | 637542 |
| REACH Code | Y113 |
| HTS Code | 29182965 |
| Tariff Code | 2918290090 |
Safety & GHS
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Health Hazard
GHS07
Hazard statements
- H303 May be harmful if swallowed
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P333+313 IF skin irritation or a rash occurs: Get medical advice/attention
- P337+313 If eye irritation persists get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- (E)-p-Coumaric acid
- (E)-p-Hydroxycinnamic acid
- Hydroxycinnamic acid
- Naringeninic acid
- p-coumaric acid
- Para-Coumaric acid
- trans-4-coumaric acid
- trans-p-Coumaric acid
- trans-p-Coumarinic acid
- trans-p-Hydroxycinnamic acid
Frequently asked questions
What is 4-hydroxycinnamic acid commonly used for?
4-Hydroxycinnamic acid is primarily used as a precursor in the synthesis of pharmaceuticals, food preservatives, and as a UV filter in sunscreens. It’s also studied for its antioxidant properties in research applications.
What is the chemical formula and molecular weight of 4-hydroxycinnamic acid?
The chemical formula is **HOC₆H₄CH=CHCO₂H**, and the molecular weight is **164.16 g/mol**.
What safety classification does 4-hydroxycinnamic acid have?
The product carries a **Signal Word: Warning** under GHS classification, indicating moderate hazard. Full SDS is provided with orders for detailed safety information.
How should 4-hydroxycinnamic acid be stored?
Store at **ambient temperature** in a tightly sealed container, protected from light and moisture to maintain stability.
Does Molekula offer 4-hydroxycinnamic acid in bulk quantities?
Yes, we supply **bulk quantities** (minimum order quantities vary by grade; contact us for pricing and availability).
What documentation comes with an order of 4-hydroxycinnamic acid?
Each order includes a **Certificate of Analysis (CoA)**, **Safety Data Sheet (SDS)**, and a **Material Safety Information (MSI) sheet** for compliance and handling guidance.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.