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Antimony Dialkyl Dithiocarbamate

  • Corrosion inhibitors
  • CAS 15890-25-2
  • IUPAC: Dithiocarbamic acid, dialkyl-, antimony salt

Antimony Dialkyl Dithiocarbamate (CAS 15890-25-2) appears in 1 of the 1,812 car-care products CarCareTruth tracks (as of June 2026).

Limited toxicological data available. Antimony compounds carry potential systemic toxicity via repeated exposure (H372 STOT-RE has been associated with antimony trioxide, a chemically distinct compound). Classified as an irritant in SDS at typical use concentrations; no H300-series lethal codes at the mixture level for this specific compound at reported concentrations (1–3%).

Antimony dialkyl dithiocarbamate (CAS 15890-25-2) is a metal-organic extreme-pressure additive used in specialty lubricants. It functions similarly to zinc dialkyl dithiophosphate (ZDDP) by forming protective tribofilms on metal surfaces under high-contact-stress conditions, reducing wear and re-seizure on recently freed fasteners.

In penetrating oils, the compound contributes to the re-seizure prevention score by providing a chemically bonded protective film after the penetrant wets the fastener interface. Full toxicological characterization is not yet available in public databases — health assessments for this CAS number rely on structural analogy to other antimony compounds rather than direct testing data.

Health & environment profile

VOC
no
Prop 65 listed
no
Asthmagen
no
EPA Safer Choice
no
Aquatic toxicity
yes
Biodegradable
no
Bioaccumulative
no
Persistent
yes
Ozone depleting
no
Microplastic
no
PFAS
no
Env. score
3/5
Purpose: Extreme-pressure and anti-wear additive; analog to ZDDP (zinc dialkyldithiophosphate) used to reduce friction and inhibit corrosion in metalworking and penetrating oils

Common questions about Antimony Dialkyl Dithiocarbamate

What is Antimony Dialkyl Dithiocarbamate used for in car care?
Extreme-pressure and anti-wear additive; analog to ZDDP (zinc dialkyldithiophosphate) used to reduce friction and inhibit corrosion in metalworking and penetrating oils
Is Antimony Dialkyl Dithiocarbamate a VOC?
No. Antimony Dialkyl Dithiocarbamate is not classified as a volatile organic compound (VOC).
Is Antimony Dialkyl Dithiocarbamate on California's Proposition 65 list?
No. Antimony Dialkyl Dithiocarbamate 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.