Description

Isooctyl Diphenyl Phosphite (CAS No. 26401-27-4) is a high-purity organophosphorus compound with the molecular formula C₂₀H₂₇O₃P. This specialized chemical is widely utilized as an effective antioxidant, stabilizer, and chelating agent in polymer processing, lubricant formulations, and specialty chemical applications. Its unique molecular structure, featuring an isooctyl group and two phenyl rings bonded to a phosphite center, provides excellent hydrolytic stability and thermal resistance, making it ideal for high-performance industrial applications. This product is rigorously tested to ensure compliance with industry standards, offering researchers and scientists a reliable reagent for advanced material science studies, polymer modification, and additive development. Available in various packaging options to suit laboratory and bulk-scale requirements.

Properties

• CAS Number: 26401-27-4
• Complexity: 279
• IUPAC Name: 6-methylheptyl diphenyl phosphite
• InChI: InChI=1S/C20H27O3P/c1-18(2)12-6-5-11-17-21-24(22-19-13-7-3-8-14-19)23-20-15-9-4-10-16-20/h3-4,7-10,13-16,18H,5-6,11-12,17H2,1-2H3
• InChI Key: YEQHNTCMAVPEKP-UHFFFAOYSA-N
• Exact Mass: 346.16978172
• Molecular Formula: C20H27O3P
• Molecular Weight: 346.4
• SMILES: CC(C)CCCCCOP(OC1=CC=CC=C1)OC2=CC=CC=C2
• Topological: 27.7
• Monoisotopic Mass: 346.16978172
• Synonyms: Isooctyl diphenyl phosphite, 26401-27-4, Phosphorous acid, isooctyl diphenyl ester, diphenyl isooctyl phosphite, EINECS 247-658-7, 247-658-7, 6-METHYLHEPTYL DIPHENYL PHOSPHITE, 1195562-89-0, 4GC8EJC3HX, SCHEMBL263013, DTXSID90883102, YEQHNTCMAVPEKP-UHFFFAOYSA-N, NS00051292, F87257, Phosphorous acid, 6-methylheptyl diphenyl ester

Isooctyl Diphenyl Phosphite is primarily employed as a secondary antioxidant in polyolefins, PVC, and other polymers to prevent thermal degradation during processing. It acts as a chelating agent for metal ions in lubricants and fuel additives, enhancing oxidative stability. Additionally, it finds use as a stabilizer in synthetic rubber formulations and as an intermediate in organophosphorus synthesis for specialty chemicals.

Safety and Hazards

GHS Hazard Statements

• Not Classified
• Reported as not meeting GHS hazard criteria by 20 of 22 companies (only 9.1% companies provided GHS information). For more detailed information, please visit ECHA C&L website.

Hazard Classes and Categories

• Not Classified

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