Di-tert-butyl peroxide
Also known as: DTBP, Bis(1,1-dimethylethyl) peroxide, tert-Butyl peroxide, Bis(tert-butyl) peroxide, (tert-C4H9O)2, 2,2'-dioxybis(2-methylpropane), 2-(tert-Butylperoxy)-2-methylpropane, 2-Methyl-2-[(2-methyl-2-propanyl)peroxy]propane, Peroxide, bis(1,1-dimethylethyl), bis(t-butyl)peroxide, tert-Butyl peroxide (Luperox DI)
Di-tert-butyl peroxide (CAS 110-05-4) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C8H18O2 and a molecular weight of 146.227 g/mol. Key properties include a melting point of -30 °C, a boiling point of 111.0±0.0 °C at 760 mmHg, a density of 0.8±0.1 g/cm3 and a flash point of 29.7±25.6 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour, H242 and H341 — Suspected of causing genetic defects. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 110-05-4
- Jingsj CID
- J-38277-4
- Molecular Formula
- C8H18O2
- Molecular Weight
- 146.227 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -30 °C |
|---|---|
| Boiling Point | 111.0±0.0 °C at 760 mmHg |
| Density | 0.8±0.1 g/cm3 |
| Flash Point | 29.7±25.6 °C |
| Exact Mass | 146.130676 |
| PSA | 18.46000 |
| LogP | 3.19 |
| Vapor Pressure | 27.3±0.2 mmHg at 25°C |
| Refractive Index | 1.405 |
| Additional Property | immiscible |
GHS Safety & Compliance
- H225 — Highly flammable liquid and vapour
- H242
- H341 — Suspected of causing genetic defects
- H412 — Harmful to aquatic life with long lasting effects
Customs & Trade Information
| HS Code | 2909600000 |
|---|---|
| Summary | 2909600000 alcohol peroxides, ether peroxides, ketone peroxides and their halogenated, sulphonated, nitrated or nitrosated derivatives。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Di-tert-butyl peroxide?
The CAS number of Di-tert-butyl peroxide is 110-05-4.
What are the molecular formula and molecular weight of Di-tert-butyl peroxide?
Di-tert-butyl peroxide has molecular formula C8H18O2 and molecular weight 146.227 g/mol.
Is Di-tert-butyl peroxide hazardous?
Di-tert-butyl peroxide has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H242; H341 — Suspected of causing genetic defects.
What are the upstream and downstream products of Di-tert-butyl peroxide?
For Di-tert-butyl peroxide, Upstream Products: Isobutane Residual Solvent Standard, tert-Butyl hydroperoxide, tert-Butanol; Downstream Products: Butane,2,2,3,3-tetramethyl-, ethane, 2,3-DIMETHYL-1,3-BUTADIENE.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Di-tert-butyl peroxide (CAS 110-05-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-38277-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.