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CAS 81-49-2

1-Amino-2,4-dibromoanthraquinone

This is a synthetic anthraquinone used to make certain dyes and pigments for plastics, fibers, and inks. It matters because workplace handling of anthraquinone dyes can create dust exposure, and some related anthraquinones have caused cancer in animals [1][2].

Where It Comes From

Made as a dye/pigment intermediate; used in colorant production and processing of colored plastics and textiles [2][3].

How You Are Exposed

Mainly at work by breathing dust or getting it on skin during manufacturing, formulation, or coloring operations; public exposure is expected to be low [2][3].

Why It Matters

Data for this exact chemical are limited. Anthraquinone (the parent compound) is “reasonably anticipated to be a human carcinogen” based on animal studies; prudent controls are advised [1]. Dust/contact may irritate skin and eyes [3].

Who Is at Risk

Workers in dye/pigment production, plastics/textile dyeing or printing, and maintenance where powders are handled or equipment is opened [2][3].

How to Lower Your Exposure

Use closed systems/local exhaust, minimize dust, wear gloves/eye protection/respiratory protection as needed, practice good hygiene, and follow the Safety Data Sheet [2][3].

References

  1. [1]NTP, Report on Carcinogens: Anthraquinone (Reasonably Anticipated to be a Human Carcinogen).
  2. [2]IARC Monographs, Volume 99: Some Aromatic Amines, Organic Dyes, and Related Exposures (2010).
  3. [3]ECHA Substance Information: 1-Amino-2,4-dibromoanthraquinone (CAS 81-49-2).

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