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CAS 101-90-6

Diglycidyl resorcinol ether

Diglycidyl resorcinol ether (DGRE) is a glycidyl ether used in some epoxy resins, adhesives, and coatings. It can irritate skin and eyes, cause allergic skin reactions, and is classified in the EU as potentially cancer-causing and DNA‑damaging, so limiting exposure matters [1][2].

Where It Comes From

Made and used in epoxy formulations for adhesives, coatings, electrical laminates, and composites; typically present in uncured resin mixes as a reactive diluent [1][2].

How You Are Exposed

Mainly through skin contact and breathing vapors or mists when mixing, applying, or cleaning up epoxy products at work or during DIY projects [2][3].

Why It Matters

Causes skin/eye irritation and allergic dermatitis; EU classifies it as mutagenic (may damage DNA) and carcinogenic (may cause cancer) [1][2].

Who Is at Risk

Workers who formulate or use epoxy systems (composites, flooring, electronics, boat/auto repair), laboratory staff, and frequent DIY users; people with damaged skin are more vulnerable [2][3].

How to Lower Your Exposure

Choose products without DGRE (check SDS for CAS 101-90-6); wear chemical-resistant gloves (e.g., nitrile), goggles, and sleeves; use local exhaust/ventilation; avoid skin contact and clean spills promptly; follow cure times and disposal guidance [1][3].

References

  1. [1]European Chemicals Agency (ECHA). Resorcinol, diglycidyl ether (CAS 101-90-6) – Classification and labelling.
  2. [2]NIH PubChem. Diglycidyl resorcinol ether (CAS 101-90-6) – Compound summary and hazards.
  3. [3]U.S. EPA ChemView/TSCA Inventory. Diglycidyl resorcinol ether (CAS 101-90-6) – Regulatory and use information.

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