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2,2,4-Trimethyl-1,2-Dihydroquinoline
- Benchmark: Benchmark 2
- Assessed: 2021-11-03
- Expires: 2026-11-03
Key Functions: Industrial / Manufacturing, Plasticizers & Polymer
2,2,4-Trimethyl-1,2-dihydroquinoline, also called TMDHQ is a monomer that is used as an antioxidant in styrene-butadiene and nitrile butadiene rubbers and latexes (NTP 1997). It is described by some sources as a dark yellow liquid and by others as a tan powder. It has low volatility and water solubility, and is non-flammable (CAMEO Chemicals Undated, HSDB 2003).
Chemical Synonyms 1,2-Dihydro-2,2,4-trimethylquinoline (monomer), Flectol A, Flectol H, Flectol pastilles, Polnox R, Quinoline, 1,2-dihydro-2,2,4-trimethyl-, Trimethyl dihydroquinoline, Vulkanox HS/LG, Vulkanox HS/powder, Acetonanil (ChemIDplus 2021).