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Toluene Diisocyanates (2,4 and 2, 6)

CAS Number

584-84-9; 91-08-7

Synonym

AI3-15101; 1,3-diisocyanato-2-methylbenzene; 1,3-diisocyanatomethyl benzene; 2,6-diisocyanatotoluene; Cresorcinol diisocyanate; desmodur T80; 2,4-diisocyanato-1-methylbenzene; 2,4- and 2,6-diisocyanatotoluene; Hylene T; Isocyanic Acid, methylphenylene ester; 4-methyl-m-phenylene isocyanate; 2-methyl-meta-phenylene isocyanate; Mondur TD; Nacconate 100; NCI-C50533; Niax TDI; Meta-toluene diisocyanate; Tolylene-2,4-diisocyanate; Tolylene diisocyanate; m-Tolylene diisocyanate; 2,4- and 2,6-TDI, 26471-62-5 (TDI mixture)

Occurrence/Use

Manufacture of flexible polyurethane foam, elastomers, wood finishes, lacquers, foam-coated fabrics, and insulation materials. Often available as a mixture of the two isomers, though 2,4-TDI is produced in its pure state.

Acute RELs

Acute REL (μg/m3): 
2
Species: 
Human
Acute REL Target Organs: 
Respiratory system
Last Acute REL Revision: 
3/30/2016
Acute Reference Exposure Levels Comments: 

8-Hour RELs

8-Hour Inhalation REL (μg/m3): 
0.015
Last 8-Hour REL Revision: 
3/30/2016
8-Hour Reference Exposure Levels Comments: 

Chronic REL

Chronic Inhalation REL (μg/m3): 
0.008
Chronic Target Organs: 
Respiratory system
Human Data: 
yes
Last Chronic REL Revision: 
3/30/2016
Chronic Reference Exposure Levels Comments: