Octaphenylcyclotetrasiloxane is a cyclic organosilicon compound primarily utilized as a precursor in the production of silicone materials. Its structure features eight phenyl groups attached to a siloxane ring, contributing to its non-polar character and high molecular weight.
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Titanium isopropoxide
Polymerization catalyst and paint additive
2-Methyl-3-nitrophenol
chemical intermediate for synthesis
Hydroxylammonium chloride
Organic synthesis reagent
2-acetoxy-1-ethoxypropane
Solvent in industrial coatings
The international HS code for Octaphenylcyclotetrasiloxane (CAS 546-56-5) is 2931.90.
2931.90
2931 90 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
2,2,4,4,6,6,8,8-octakis-phenyl-1,3,5,7,2,4,6,8-tetraoxatetrasilocane
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C1=CC=C(C=C1)[Si]2(O[Si](O[Si](O[Si](O2)(C3=CC=CC=C3)C4=CC=CC=C4)(C5=CC=CC=C5)C6=CC=CC=C6)(C7=CC=CC=C7)C8=CC=CC=C8)C9=CC=CC=C9
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