Body & Beauty / Compounds / 6-Methylquinoline

6-Methylquinoline on your skin: a safety profile

Elevated risk

(People-specific data is limited; this page draws from human adult context.) Quinoline/quinoxaline derivative — parent compound quinoline is IARC 2B (possible carcinogen); hepatotoxic; structurally related to known carcinogens

What is 6-methylquinoline?

Also known as: p-Toluquinoline, Quinoline, 6-methyl-, FEMA No. 2744, K14453I13N.

IUPAC name
6-methylquinoline
CAS number
91-62-3
Molecular formula
C10H9N
Molecular weight
143.18 g/mol
SMILES
CC1=CC2=C(C=C1)N=CC=C2
PubChem CID
7059

Risk for people

Elevated risk

Quinoline/quinoxaline derivative — parent compound quinoline is IARC 2B (possible carcinogen); hepatotoxic; structurally related to known carcinogens

Regulatory consensus

1 regulatory bodyhas classified 6-Methylquinoline.

AgencyYearClassificationNotes
PROP_652012carcinogenCalifornia Prop 65 — listed as carcinogen

Regulators apply different standards of evidence — animal-data weighting, exposure-pattern assumptions, epidemiological power thresholds — which is why two scientific bodies can review the same data and reach different conclusions. The disagreement is the data.

Where you encounter 6-methylquinoline

  • Personal Care — fragrance formulations
  • Fragrance — perfume, cologne, scented personal care products, household fragrance products, candles
    Identified in Fragrance Ingredient Safety Priority Research database (2,325 ingredients)

Safer alternatives

Lower-risk approaches that achieve a similar outcome to 6-Methylquinoline:

  • Exposure reduction / process control
    Trade-offs: Requires R&D investment to redesign synthesis routes; may reduce yield or throughput initially; long-term benefits include reduced waste treatment costs, regulatory compliance, and worker safety; 12 Principles of Green Chemistry framework available.
    Relative cost: 1.2-2×

Frequently asked questions

What products contain 6-methylquinoline?

6-Methylquinoline appears in: fragrance formulations (Personal care); perfume (Fragrance); cologne (Fragrance).

See 6-Methylquinoline in the body app

Look up products containing 6-methylquinoline, compare to alternatives, and explore the full data record.

Open in body View raw API data

Sources (1)
  1. PubChem Compound Database (2026) — database

Reference data, not professional advice. Aggregates publicly available regulatory and scientific data; not a substitute for veterinary, medical, legal, or regulatory advice. Why we built ALETHEIA →