Didodecyl-d₅₀ 3,3′-thiodipropionate

Didodecyl-3,3′-thiodipropionate (Plastic Additive 9) is used as a secondary antioxidant to prevent the degradation of various materials, including plastics, rubber, and synthetic fibers, by scavenging free radicals caused by heat, oxygen, and UV light Analytical testing focuses on identity confirmation, quantification, and migration assessment under worst‑case time/temperature/simulant conditions to support material qualification and compliance.

This deuterated standard can be used as internal standard for IDMS (isotope dilution mass spectroscopy)

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