Piperonyl butoxide
Also known as: 5-[2-(2-Butoxyethoxy)ethoxymethyl]-6-propyl-1,3-benzodioxole, Butacide, Butacid, PBO, 2-(2-Butoxyethoxy)ethyl (6-propylpiperonyl) ether, alpha-[2-(2-Butoxyethoxy)ethoxy]-4,5-methylenedioxy-2-propyltoluene, Butylcarbityl (6-propylpiperonyl) ether, INCITE, Vex
Piperonyl butoxide (CAS 51-03-6) is a compound in the Ethers category listed in the Jingsj chemical database. It has the molecular formula C19H30O5 and a molecular weight of 338.439 g/mol. Key properties include a boiling point of 396.2±0.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 165.3±27.2 °C. It is classified under GHS with signal word Warning and hazard statements H410 — Very toxic to aquatic life with long lasting effects. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 51-03-6
- Jingsj CID
- J-26480-0
- Molecular Formula
- C19H30O5
- Molecular Weight
- 338.439 g/mol
- Category
- Ethers
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 396.2±0.0 °C at 760 mmHg |
|---|---|
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 165.3±27.2 °C |
| Exact Mass | 338.209320 |
| PSA | 46.15000 |
| LogP | 4.23 |
| Vapor Pressure | 0.0±0.8 mmHg at 25°C |
| Refractive Index | 1.503 |
| Additional Property | <0.1 g/100 mL at 18 ºC |
GHS Safety & Compliance
- H410 — Very toxic to aquatic life with long lasting effects
Frequently Asked Questions
What is the CAS number of Piperonyl butoxide?
The CAS number of Piperonyl butoxide is 51-03-6.
What are the molecular formula and molecular weight of Piperonyl butoxide?
Piperonyl butoxide has molecular formula C19H30O5 and molecular weight 338.439 g/mol.
Is Piperonyl butoxide hazardous?
Piperonyl butoxide has GHS signal word Warning and hazard statements H410 — Very toxic to aquatic life with long lasting effects.
What are the upstream and downstream products of Piperonyl butoxide?
For Piperonyl butoxide, Upstream Products: 2-(2-Butoxyethoxy)ethanol, Dihydrosafrole.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Piperonyl butoxide (CAS 51-03-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-26480-0 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.