RESINS - EPOXY, POLYESTER, ACRYLIC: are toxic and potentially carcinogenic. Toxicity can develop through skin absorption, inhalation or accidental ingestion and can result in sensitisation, heart dysfunction, chest spasm, neurological disorders and blood disorders. Resins are flammable and should never be handled close to heat or naked flame. The diluents of resins are volatile and many are toxic.
EYES - Code 2; SKIN - Code 12; INHALED - Code 15; INGESTED - Code 21

RESORCIN: is a quinone imine dye and a potential carcinogen. Its toxicity has not been quantified. Handle with care.
EYES - Code 3; SKIN - Code 12; INHALED - Code 16; INGESTED - Code 24

RHODAMINE B: is a xanthene dye. It is an eye and skin irritant and toxic by inhalation or ingestion. Over-exposure may cause liver and thyroid damage. A fine mist of dust can create an explosion.
EYES - Code 2; SKIN - Code 5; INHALED - Code 15; INGESTED - Code 21

RHODANINE: Toxicity data for this compound are not yet available. Handle with care.
EYES - Code 2; SKIN - Code 12; INHALED - Code 15; INGESTED - Code 17

RIBONUCLEASE: is an enzyme which digests ribonucleic acid. It will cause irritation to the eyes and skin.
EYES - Code 3; SKIN - Code 9; INHALED - Code 14; INGESTED - Code 22

RUBEANIC ACID: is a nitroso dye. It is an irritant and is toxic.
EYES - Code 2; SKIN - Code 12; INHALED - Code 15; INGESTED - Code 21