p-Dichlorobenzene
- Aromatic solvents
- CAS 106-46-7
- IUPAC: 1,4-Dichlorobenzene
CarCareTruth tracks p-Dichlorobenzene (CAS 106-46-7) as a car-care ingredient. It is listed on California's Proposition 65 and classified as a VOC.
California Prop 65 listed carcinogen (cancer). Suspected carcinogen (IARC Group 2B). Eye irritant (H319). Listed under SARA 313 at 0.1% reporting threshold. Commonly used in moth repellents and deodorizer products; occupational exposure standards apply.
1,4-Dichlorobenzene (p-dichlorobenzene, p-DCB) is a chlorinated aromatic compound listed as a California Prop 65 carcinogen. It is classified as IARC Group 2B (possibly carcinogenic to humans) based on animal studies. In automotive additive formulations it typically appears as a trace impurity from the dichlorobenzene manufacturing process. At the sub-0.1% concentration level present in products like Marvel Mystery Oil, the exposure during routine use is minimal, but the Prop 65 label warning is required in California. It is acutely aquatically toxic and persistent in the environment.
Health & environment profile
- VOC
- yes
- Prop 65 listed
- yes
- Asthmagen
- no
- EPA Safer Choice
- no
- Aquatic toxicity
- yes
- Biodegradable
- no
- Bioaccumulative
- yes
- Persistent
- yes
- Ozone depleting
- no
- Microplastic
- no
- PFAS
- no
- Env. score
- 2/5
Common questions about p-Dichlorobenzene
- What is p-Dichlorobenzene used for in car care?
- Aromatic solvent/carrier; trace impurity in some petroleum additive formulations
- Is p-Dichlorobenzene a VOC?
- Yes. p-Dichlorobenzene is classified as a volatile organic compound (VOC).
- Is p-Dichlorobenzene on California's Proposition 65 list?
- Yes. p-Dichlorobenzene appears on California's Proposition 65 list.
No products on file contain this (yet)
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.