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CAS 91-23-6

o-Nitroanisole

o-Nitroanisole is a man-made chemical mainly used to make dyes and other industrial intermediates. It’s toxic; animal studies show it can cause cancer, so it’s treated as a possible human carcinogen [1][2].

Where It Comes From

Made as an intermediate for dyes, pigments, and pharmaceuticals; can be released to air and water during manufacturing and waste handling [1].

How You Are Exposed

Breathing workplace air, skin contact during handling, or contact with air or water near production sites or spills [1][2].

Why It Matters

Linked to tumors in multiple organs in rats and mice; may also affect the liver and bladder; irritation can occur at high exposure levels [1][2].

Who Is at Risk

Workers in dye/chemical plants; people living near such facilities or using contaminated private wells [1].

How to Lower Your Exposure

At work, use closed systems, ventilation, protective gloves/eye protection, and good hygiene. At home, review local water reports; consider certified activated carbon filtration for organic chemicals; avoid areas during spills and follow advisories [1][2].

References

  1. [1]IARC Monographs on the Evaluation of Carcinogenic Risks to Humans. Volume 65: Printing Processes and Printing Inks, Carbon Black and Some Nitro Compounds. o-Nitroanisole. International Agency for Research on Cancer.
  2. [2]NTP Technical Report: Toxicology and Carcinogenesis Studies of o-Nitroanisole (CAS No. 91-23-6) in F344/N Rats and B6C3F1 Mice. National Toxicology Program.

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