Molekula
Pentyl 4-hydroxybenzoate
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
Pentyl 4-hydroxybenzoate is a synthetic ester used as a preservative in cosmetics and pharmaceuticals due to its antimicrobial properties. It is a white to off-white crystalline powder with a faint aromatic odor. CAS: 6521-29-5, Molecular Formula: C12H16O3, Molecular Weight: 208.25 g/mol. Store at ambient temperature. Signal word: Warning. Molekula supplies Pentyl 4-hydroxybenzoate 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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5 g — £30.90 per pack ex VAT · £37.08 inc. VAT
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 | White to off-white powder |
| Purity (GC) | ≥ 98% |
| Solubility in methanol | Almost transparency |
| Purity (Neutralisation) | ≥ 98% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
Identification
| Property | Value |
|---|---|
| SKU | 90024030 |
| CAS Number | 6521-29-5 |
| IUPAC Name | pentyl 4-hydroxybenzoate |
| EC Number | 229-408-9 |
| Molecular Formula | C12H16O3 |
| Molecular Weight | 208.25 |
| Exact Mass | 208.1099 |
| SMILES | CCCCCOC(=O)C1=CC=C(C=C1)O |
| InChIKey | ZNSSPLQZSUWFJT-UHFFFAOYSA-N |
| InChI | InChI=1S/C12H16O3/c1-2-3-4-9-15-12(14)10-5-7-11(13)8-6-10/h5-8,13H,2-4,9H2,1H3 |
| PubChem CID | 23019 |
| REACH Code | Y110 |
| HTS Code | 2918297500 |
| Tariff Code | 2918290090 |
Safety & GHS
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Health Hazard
GHS07
Hazard statements
- H315 Causes skin irritation
- H317 May cause an allergic skin reaction
- H319 Causes serious eye 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
- P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P501 Dispose of contents/container to an approved waste disposal plant
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, 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
- 4-Hydroxybenzoic Acid n-Amyl Ester
- Amyl 4-hydroxybenzoate
- Amyl p-Hydroxybenzoate
- n-Pentyl 4-hydroxybenzoate
- p-Hydroxybenzoic acid pentyl ester
- p-Oxybenzoesaurepentylester
- Pentyl p-hydroxybenzoate
- Pentyl Paraben
- ZNSSPLQZSUWFJT-UHFFFAOYSA-N
Frequently asked questions
What is Pentyl 4-hydroxybenzoate used for?
It is primarily used as a preservative in cosmetics and pharmaceuticals due to its antimicrobial properties.
What is the chemical formula and molecular weight of Pentyl 4-hydroxybenzoate?
The formula is C12H16O3 with a molecular weight of 208.25 g/mol.
How should Pentyl 4-hydroxybenzoate be stored?
It should be stored at ambient temperature, protected from moisture and light.
What grade is available for Pentyl 4-hydroxybenzoate?
Available in technical grade; specific purity details can be provided upon request.
Can Molekula supply Pentyl 4-hydroxybenzoate in bulk?
Yes, Molekula can supply Pentyl 4-hydroxybenzoate in bulk quantities—please contact sales for pricing and availability.
What documentation comes with a purchase of Pentyl 4-hydroxybenzoate?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) with the shipment.
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.