Molekula
Isopropyl 4-hydroxybenzoate
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Isopropyl 4-hydroxybenzoate is a synthetic ester used as a preservative in cosmetics, pharmaceuticals, and food products due to its antimicrobial properties. It is a white to off-white crystalline powder with a molecular formula of HOC6H4COOCH(CH3)2 and a molecular weight of 180.20 g/mol. It has a CAS number of 4191-73-5 and should be stored at 2 to 8 °C. The substance is classified as a warning hazard. Molekula supplies Isopropyl 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
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
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 crystalline powder |
| Melting Point | 84 - 87 ℃ |
| Purity (HPLC) | ≥98.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 12986395 |
| CAS Number | 4191-73-5 |
| IUPAC Name | propan-2-yl 4-hydroxybenzoate |
| EC Number | 224-069-3 |
| Molecular Formula | HOC6H4COOCH(CH3)2 |
| Molecular Weight | 180.20 |
| Exact Mass | 180.0786 |
| SMILES | CC(C)OC(=O)C1=CC=C(C=C1)O |
| InChIKey | CMHMMKSPYOOVGI-UHFFFAOYSA-N |
| InChI | InChI=1S/C10H12O3/c1-7(2)13-10(12)8-3-5-9(11)6-4-8/h3-7,11H,1-2H3 |
| PubChem CID | 20161 |
| REACH Code | Y110 |
| Tariff Code | 2918290090 |
Safety & GHS
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Health Hazard
GHS07
Hazard statements
- H302 Harmful if swallowed
- H315 Causes skin irritation
- H317 May cause an allergic skin reaction
- H318 Causes serious eye damage
- 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
- P301+312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
- 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
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Russian, 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.
Quality certificates
Molekula Group is certified to ISO 9001:2015 (quality) and ISO 14001:2015 (environmental management), audited by a UKAS-accredited body. Both certificates are valid to 17 May 2028.
Synonyms
- 1-Methylethyl-4-hydroxybenzoate
- 4-Hydroxybenzoic Acid Isopropyl Ester
- 4-Hydroxybenzoic acid, 1-methylethyl ester
- Benzoic acid, 4-hydroxy-, 1-methylethyl ester
- i-Pr 4-OH-benzoate
- Isopropyl p-hydroxybenzoate
- Isopropylparaben
- p-Hydroxybenzoic acid isopropyl ester
- p-Oxybenzoesaureisopropylester
- propan-2-yl 4-hydroxybenzoate
Frequently asked questions
What is isopropyl 4-hydroxybenzoate used for?
It is primarily used as a preservative in cosmetics, pharmaceuticals, and food products due to its antimicrobial properties.
What is the chemical formula and molecular weight of isopropyl 4-hydroxybenzoate?
The formula is HOC6H4COOCH(CH3)2 and the molecular weight is 180.20 g/mol.
How should isopropyl 4-hydroxybenzoate be stored?
It should be stored at temperatures between 2 to 8 °C to maintain stability and prevent degradation.
What grade is available for isopropyl 4-hydroxybenzoate?
Available in pharmaceutical and cosmetic grades, suitable for use in regulated applications.
Can Molekula supply isopropyl 4-hydroxybenzoate in bulk?
Yes, Molekula can supply isopropyl 4-hydroxybenzoate in bulk quantities—please contact sales for details.
What documentation comes with an order of isopropyl 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.