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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Boiling point

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Administrative data

Link to relevant study record(s)

boiling point
Type of information:
other: Observation
Adequacy of study:
key study
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Basic data given
according to guideline
not specified
Principles of method if other than guideline:
no data
GLP compliance:
not specified
Type of method:
other: no data
Boiling pt.:
155 - 160 °C
Atm. press.:
0.67 hPa
Executive summary:

The boiling point of 4,4-methylenedicyclohexyl diisocyanate is approx. 155 -160 °C at 0.67 hPa. (Beilstein, 2003)

Description of key information

- Decomposition above 300°C at normal pressure

- approx. 155 -160 °C at 0.67 hPa.

Key value for chemical safety assessment

Temperature of decomposition (state purity):
300 °C

Additional information


- Bayer AG 1998

- Beilstein, 2003 Guideline: EU Method A.2 (Boiling Temperature)