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CarCareTruth

Naphthenic oil, severely hydrotreated

  • Aliphatic solvents
  • CAS 64741-86-2

Naphthenic oil, severely hydrotreated (CAS 64741-86-2) appears in 2 of the 2,122 car-care products CarCareTruth tracks (as of August 2026). It is classified as a VOC.

Carries Acute Tox. 4 (H332 — harmful if inhaled), Skin Irrit. 2 (H315), and Asp. Tox. 1 (H304) classifications at ingredient level. The H332 acute-inhalation classification reflects mist-generation hazards in industrial applications; in liquid finishing polishes the hazard is limited to vapor exposure during heated handling. DMSO extract <3% per IP 346 means it is exempt from CMR classification.

A REACH-registered severely-hydrotreated naphthenic distillate (CAS 64741-86-2) used as a heavy lubricating oil base in finishing polishes, glazes, and rust-preventive products. Severely-hydrotreated grades have lower aromatic content than the unrefined precursor, exempting them from the Carc. 1B classification that applies to highly aromatic mineral oils. Hazard profile combines Acute Tox. 4 (H332, harmful if inhaled), Skin Irrit. 2 (H315, mild irritation on prolonged contact), and Asp. Tox. 1 (H304, aspiration hazard if swallowed) — the same triad common across many heavy petroleum lubricating fractions.

Health & environment profile

VOC
yes
Prop 65 listed
no
Asthmagen
no
EPA Safer Choice
no
Aquatic toxicity
no
Biodegradable
no
Bioaccumulative
no
Persistent
yes
Ozone depleting
no
Microplastic
no
PFAS
no
Env. score
3/5
Purpose: Heavy lubricating oil base in polishes, glazes, and metal-protective products

Common questions about Naphthenic oil, severely hydrotreated

What is Naphthenic oil, severely hydrotreated used for in car care?
Heavy lubricating oil base in polishes, glazes, and metal-protective products
Is Naphthenic oil, severely hydrotreated a VOC?
Yes. Naphthenic oil, severely hydrotreated is classified as a volatile organic compound (VOC).
Is Naphthenic oil, severely hydrotreated on California's Proposition 65 list?
No. Naphthenic oil, severely hydrotreated is not on California's Proposition 65 list.

2 products 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.