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Hydrocarbons, C10, Aromatics, <1% Naphthalene

  • Aromatic solvents
  • CAS 1189173-42-9
  • IUPAC: Hydrocarbons, C10, aromatics, <1% naphthalene

Hydrocarbons, C10, Aromatics, <1% Naphthalene (CAS 1189173-42-9) appears in 1 of the 1,812 car-care products CarCareTruth tracks (as of June 2026). It is classified as a VOC.

Carries H304 (aspiration hazard — fatal if swallowed and enters airways) and H336 (STOT SE 3, narcosis) at ingredient level per GHS classification. The aspiration hazard applies when liquid viscosity is below the CLP exemption threshold (20.5 mm²/s at 40°C). At typical concentrations in penetrating-oil formulas, inhalation of vapors in enclosed spaces can cause drowsiness or dizziness (H336).

Hydrocarbons, C10 aromatics with <1% naphthalene (CAS 1189173-42-9) is an aromatic petroleum-distillate fraction used as a co-solvent in penetrating oil restorers. The aromatic character provides stronger solvency than aliphatic fractions alone, helping the formula wet and penetrate oxidized plastic and rubber trim. At the ingredient level this fraction carries H304 (aspiration hazard) and H336 (narcosis), and shows aquatic toxicity: EC50 for Daphnia magna ≤10 mg/L at 48h, with fish and algae data also indicating aquatic hazard. Not readily biodegradable per available data.

This fraction is distinct from heavier aromatic naphthas (C9-C15) — the C10 chain length provides moderate volatility with higher aromatic content than aliphatic isoalkane fractions. The naphthalene content is controlled below 1% to limit the most hazardous aromatic component.

Health & environment profile

VOC
yes
Prop 65 listed
no
Asthmagen
no
EPA Safer Choice
no
Aquatic toxicity
yes
Biodegradable
no
Bioaccumulative
no
Persistent
no
Ozone depleting
no
Microplastic
no
PFAS
no
Env. score
2/5
Purpose: Aromatic hydrocarbon solvent fraction used as carrier in penetrating oil restorers and surface treatments; provides solvency for resin penetration into porous substrates

Common questions about Hydrocarbons, C10, Aromatics, <1% Naphthalene

What is Hydrocarbons, C10, Aromatics, <1% Naphthalene used for in car care?
Aromatic hydrocarbon solvent fraction used as carrier in penetrating oil restorers and surface treatments; provides solvency for resin penetration into porous substrates
Is Hydrocarbons, C10, Aromatics, <1% Naphthalene a VOC?
Yes. Hydrocarbons, C10, Aromatics, <1% Naphthalene is classified as a volatile organic compound (VOC).
Is Hydrocarbons, C10, Aromatics, <1% Naphthalene on California's Proposition 65 list?
No. Hydrocarbons, C10, Aromatics, <1% Naphthalene 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.