Description

2,2-Bis(tert-butylperoxy)butane (CAS No. 2167-23-9), with the molecular formula C₁₂H₂₆O₄, is a high-purity organic peroxide widely utilized as a free-radical initiator in polymerization reactions. This compound is supplied as a stable solution in various solvents, ensuring safe handling and precise dosing for industrial applications. Known under trade names such as Trigonox D, Lupersol 220, and Perhexa 22-50S, it is a critical component in the production of polymers, elastomers, and specialty resins. Its controlled decomposition properties make it ideal for low-temperature curing processes, crosslinking, and copolymerization. Suitable for research, pharmaceutical, and advanced material synthesis, this product is rigorously tested for purity and consistency to meet stringent laboratory and industrial standards.

Properties

• CAS Number: 2167-23-9
• Complexity: 182
• IUPAC Name: 2,2-bis(tert-butylperoxy)butane
• InChI: InChI=1S/C12H26O4/c1-9-12(8,15-13-10(2,3)4)16-14-11(5,6)7/h9H2,1-8H3
• InChI Key: HQOVXPHOJANJBR-UHFFFAOYSA-N
• Exact Mass: 234.18310931
• Molecular Formula: C12H26O4
• Molecular Weight: 234.33
• SMILES: CCC(C)(OOC(C)(C)C)OOC(C)(C)C
• Topological: 36.9
• Monoisotopic Mass: 234.18310931
• Synonyms: 2,2-Bis(tert-butylperoxy)butane, 2167-23-9, 2,2-di(tert-Butylperoxy)butane, Trigonox D, Chaloxyd P 1200AL, Chaloxyd P 1293AL, Lupersol 220, Trigonox DM 50, V15K90HFTJ, Butane, 2,2-bis(tert-butyldioxy)-, Perhexa 22-50S, Di-tert-butyl sec-butylidene diperoxide, VP 1200, DTXSID4044874, NSC 5626, NSC-5626, TRIGONOX DB50, EINECS 218-507-2, TRIGONOX DB-50, TRIGONOX DM-50, PERHEXA 22, Butane, 2,2-bis(tert-butylperoxy)-, Peroxide, sec-butylidenebis(tert-butyl-, 2,2-bis(tert-butyldioxy)butane, 3,4,6,7-Tetraoxanonane, 5-ethyl-2,2,5,8,8-pentamethyl-, DTXCID2024874, Peroxide, (1-methylpropylidene)bis(tert-butyl, Peroxide, 1,1′-(1-methylpropylidene)bis(2-(1,1-dimethylethyl), DB-50, Peroxide, sec-butylidenebis[tert-butyl, Peroxide, (1-methylpropylidene)bis((1,1-dimethylethyl), VP-1200, PEROXIDE, SEC-BUTYLIDENEBIS(TERT-BUTYL, Peroxide, (1-methylpropylidene)bis[(1,1-dimethylethyl), Peroxide, 1,1′-(1-methylpropylidene)bis[2-(1,1-dimethylethyl), Peroxide, (1-methylpropylidene)bis[tert-butyl, SEC-BUTYLIDENEBIS(TERT-BUTYL PEROXIDE), SEC-BUTYLIDENEBIS[TERT-BUTYL PEROXIDE], 2,2-DI-(TERT-BUTYLPEROXY)BUTANE, (<= 55% IN SOLUTION), 2,2-DI-(TERT-BUTYLPEROXY)BUTANE, [<= 55% IN SOLUTION], TRIGONOX DB 50, TRIGONOX D-E 50, 2,2-di-(tert-butylperoxy)butane, Peroxide, sec-butylidenebis(tert-butyl-(8CI), UNII-V15K90HFTJ, 2,2-bis(t-butylperoxy)butane, SCHEMBL74163, 2,2-di(t-butylperoxy) butane, 2,2-bis(t-butyl peroxy)butane, 2,2-di(tert.butylperoxy)butane, Butane,2-bis(tert-butyldioxy)-, CHEMBL1884601, Butane,2-bis(tert-butylperoxy)-, NSC5626, Tox21_303782, 2,2-DI(T-BUTYLPEROXY)BUTANE, AKOS015912989, NCGC00166264-01, NCGC00357073-01, CAS-2167-23-9, DB-045662, NS00003102, A815592, Q27291399, 3,6,7-Tetraoxanonane, 5-ethyl-2,2,5,8,8-pentamethyl-

2,2-Bis(tert-butylperoxy)butane is primarily used as a radical initiator in the polymerization of styrene, ethylene, and other monomers. It is also employed in the crosslinking of polyethylene and other polyolefins to enhance thermal and mechanical properties. Additionally, this peroxide is utilized in the synthesis of specialty polymers and elastomers where controlled decomposition at lower temperatures is required.

Safety and Hazards

GHS Hazard Statements

• H224 (24.2%): Extremely flammable liquid and vapor [Danger Flammable liquids]
• H240 (18.1%): Heating may cause an explosion [Danger Self-reactive substances and mixtures; Organic peroxides]
• H242 (81.9%): Heating may cause a fire [Danger Self-reactive substances and mixtures; Organic peroxides]
• H315 (42.3%): Causes skin irritation [Warning Skin corrosion/irritation]
• H318 (18.1%): Causes serious eye damage [Danger Serious eye damage/eye irritation]
• H319 (24.2%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
• H335 (18.1%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]
• H413 (57.7%): May cause long lasting harmful effects to aquatic life [Hazardous to the aquatic environment, long-term hazard]

Precautionary Statements

• P210, P233, P234, P235, P240, P241, P242, P243, P261, P264, P264+P265, P271, P273, P280, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P305+P354+P338, P317, P319, P321, P332+P317, P337+P317, P362+P364, P370+P372+P380+P373, P370+P378, P403, P403+P233, P403+P235, P405, P410, P411, P420, and P501

Hazard Classes and Categories

• Flam. Liq. 1 (24.2%)
• Org. Perox. A (18.1%)
• Self-react. C (81.9%)
• Skin Irrit. 2 (42.3%)
• Eye Dam. 1 (18.1%)
• Eye Irrit. 2 (24.2%)
• STOT SE 3 (18.1%)
• Aquatic Chronic 4 (57.7%)

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Disclaimer: Sold exclusively for laboratory research. Prohibited for commercial use, diagnostics, or human/animal applications. Buyers assume all compliance liability.