Agent Name

Linseed oil

CAS Number




Major Category

Biological Agents


Oils, linseed; Aceite de Linaza; Acid refined linseed oil; Acidulated linseed soapstock; Bodied linseed oil; Fats and Glyceridic oils, flaxseed; Fats and Glyceridic oils, linseed; Flax oil; Flaxseed oil; Groco; Huile de Lin; L-310; Leinol; Linseed absolute; Linseed fatty acids, glycerin ester; Linseed oil absolute; Linseed oil extract; Linseed oil fatty acids, glycerol triester; Linseed oil, alkali refined; Linseed oil, bleached; Linseed oil, wash recovered; Oils, glyceridic, flaxseed or linseed; Oleum Lini; Scan-Oil; Sunflower oil; [ChemIDplus] Oils, miscellaneous: linseed; Raw linseed oil; [CHRIS]


Plant Oils and Extracts


Yellowish liquid with a peculiar odor; Gradually thickens, darkens, and acquires a more pronounced odor on exposure to air; [Merck Index] Light yellow, dark yellow, or dark amber liquid with an odor like paint; [NTP]


A drying oil composed of glycerides of linolenic, linoleic, oleic, stearic, palmitic, and myristic acids; [Merck Index] Used in oilcloths, linoleum, printing inks, artificial rubber, tracing cloth, paints, varnishes, putty, caulks, core oils, alkyd resins, pharmaceuticals, liniments, pastes, medicinal soft soap, saponated cresol solution, for tanning and enameling leather, to toughen and waterproof paper and fabrics, as an emollient, wood preservative, intermediate for epoxidized linseed oil plasticizers and fatty acids used in coatings, as an antiscaling agent to protect concrete from weathering, and human and veterinary medication; [HSDB] Used in hot melt adhesives; [NTP] Permitted for use as an inert ingredient in non-food pesticide products; [EPA] "Linseed oil, also known as flaxseed oil, is a colorless to yellowish oil obtained from the dried ripe seeds of the flax plant (Linum usitatissimum, Linaceae)." [Wikipedia]


Causes other liver changes and changes in blood serum composition in 63-day intermittent oral studies of mice; [RTECS] May polymerize; [CAMEO] A mild eye irritant; Ingestion of over 1 oz. will have a laxative effect; [CHRIS] A moderate skin irritant; [RTECS] A skin and strong eye irritant; May cause skin sensitization; Harmful by ingestion, inhalation, and skin absorption; [Sigma-Aldrich MSDS] Search for 8001-26-1 AND (dermatitis OR allergic OR sensiti*) = no articles on skin sensitization; [PubMed]


Permitted for use as an inert ingredient in non-food pesticide products; [EPA]

Exposure Assessment
Flammability (NFPA)

1: Must be preheated

Links to Other NLM Databases
Health Studies

Human Health Effects from Hazardous Substances Data Bank:

Toxicity Information


Chemical Information

Search ChemIDplus

Biomedical References

Search PubMed

Related Information in HazMap

Industrial Processes with risk of exposure: