Agent Name

Dicyclohexylmethane 4,4'-diisocyanate

CAS Number

5124-30-1

Formula

C15-H22-N2-O2

Major Category

Plastics & Rubber

Synonyms

4,4'-Diisocyanatodicyclohexylmethane; Bis(4-isocyanatocyclohexyl)methane; CP 99173; Hydrogenated MDI; Hylene W; Isocyanic acid, methylenedi-4,1-cyclohexylene ester; Methylene bis-(4-cyclohexylisocyanate); Nacconate H 12; [ChemIDplus]

Category

Diisocyanates

Description

Clear, colorless to light-yellow liquid; [NIOSH]

Sources/Uses

"Methylene bis(4-cyclohexylisocyanate) is used primarily to produce urethane products that will not yellow on exposure to light." [ACGIH]

Comments

See "ISOCYANATES."

Reference Link

Allergic contact dermatitis to DMDI in an office application.

Exposure Assessment
Skin Designation (ACGIH)

Insufficient data

TLV (ACGIH)

0.005 ppm

Vapor Pressure

0.001 mm Hg

Lethal Concentration

LCLo (rat) = 20 ppm/5h

Adverse Effects
Skin Sensitizer

Yes

Asthma

Yes

Links to Other NLM Databases
Health Studies

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Toxicity Information

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Chemical Information

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Biomedical References

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Related Information in HazMap
Diseases

Occupational diseases associated with exposure to this agent:

Processes

Industrial Processes with risk of exposure: