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CarCareTruth

Trimethylolpropane Tripelargonate

  • Esters
  • CAS 126-57-8

Trimethylolpropane Tripelargonate (CAS 126-57-8) appears in 1 of the 2,122 car-care products CarCareTruth tracks (as of August 2026).

TMP esters are a common, low-toxicity synthetic lubricant base with no GHS hazard classification in the product's own SDS §2 ('Not classified'; no signal word, no H-codes). Not a known skin or eye irritant, not a sensitizer, and not on any IARC/NTP/ACGIH/OSHA carcinogen list per the finished product's SDS §11 toxicology data.

Trimethylolpropane tripelargonate (CAS 126-57-8) is a synthetic polyol ester formed from trimethylolpropane and pelargonic (nonanoic) acid. It is a common synthetic base stock in low-toxicity, biodegradable-leaning lubricants and metalworking fluids, valued for oxidative stability, low volatility, and good lubricity compared to mineral oil at similar viscosity. It is not a California Prop 65-listed substance and carries no GHS hazard classification in the SDS this ingredient was sourced from.

Health & environment profile

VOC
no
Prop 65 listed
no
Asthmagen
no
EPA Safer Choice
no
Aquatic toxicity
no
Biodegradable
no
Bioaccumulative
no
Persistent
no
Ozone depleting
no
Microplastic
no
PFAS
no
Env. score
4/5
Purpose: Synthetic polyol-ester base fluid used as a lubricity and film-strength carrier in low-toxicity lubricating oils; 11-15% of formula per SDS §3

Common questions about Trimethylolpropane Tripelargonate

What is Trimethylolpropane Tripelargonate used for in car care?
Synthetic polyol-ester base fluid used as a lubricity and film-strength carrier in low-toxicity lubricating oils; 11-15% of formula per SDS §3
Is Trimethylolpropane Tripelargonate a VOC?
No. Trimethylolpropane Tripelargonate is not classified as a volatile organic compound (VOC).
Is Trimethylolpropane Tripelargonate on California's Proposition 65 list?
No. Trimethylolpropane Tripelargonate is not on California's Proposition 65 list.

1 product contain this

Related

Health and environment notes translate the manufacturer Safety Data Sheet, the GHS classification, and authoritative regulatory listings (California Prop 65, EPA). Not medical advice. They describe the ingredient itself; whether a hazard applies to a finished product depends on its concentration and how it's used.