Provenance

Reference data from EU CLP Annex VI and published regulations — verify against your supplier's SDS before use.

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Substance profile

1,3-Bis(1-isocyanato-1-methylethyl)benzene

1,3-Bis(1-isocyanato-1-methylethyl)benzene is a clear colorless mobile liquid at room temperature.

CAS 2778-42-9 C14H16N2O2 244.29 g/mol Danger

01 · Identification

What 1,3-Bis(1-isocyanato-1-methyle… is

1,3-Bis(1-isocyanato-1-methylethyl)benzene is a clear colorless mobile liquid at room temperature. Its molecular formula is C14H16N2O2 and its molecular weight is 244.29 g/mol. It boils at 292 °C, melts at -10 °C, is practically insoluble in water.

Under the GHS it carries the signal word Danger.

CAS number2778-42-9
EC number220-474-4
Index number615-046-00-2
Molecular formulaC14H16N2O2
Molecular weight244.29 g/mol

Other names for 1,3-Bis(1-isocyanato-1-methyle…

  • [m-TMXDI]

02 · GHS classification

Hazards and label elements

Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.

Signal wordDanger
Hazard statements assigned to 1,3-Bis(1-isocyanato-1-methyle…
CodeHazard statement
H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled.
H317 May cause an allergic skin reaction.

Precautionary statements: P261, P272, P280, P313, P333

This page lists only the codes assigned to 1,3-Bis(1-isocyanato-1-met…. The full reference lives on the hazard statements hub, the precautionary statements hub and the GHS pictograms hub.

03 · Physical and chemical properties

1,3-Bis(1-isocyanato-1-methyle… properties

Every value is shown with the conditions it was measured under and the source it came from. Where sources disagree, all values are listed rather than one being picked — the difference is usually a different form of the substance, not an error.

Property Value Conditions Source
Boiling point 292 °C (557.6 °F) at 759.813 mmHg HSDB
106 °C (222.8 °F) at 0.9 mmHg (reduced pressure) HSDB
Melting point -10 °C (14 °F) HSDB
Density 1.06 g/cm³ at 25 °C HSDB
Solubility Insoluble (reacts with water) HSDB
Vapor pressure 0.0032 mmHg at 25 °C HSDB
0.0032 mmHg Haz-Map

Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.

Safety Data Sheet

Getting an SDS for 1,3-Bis(1-isocyanato-1-met…

A Safety Data Sheet is written for a product, not for a substance: the supplier of the grade you actually buy issues it, so two suppliers of 1,3-Bis(1-isocyanato-1… issue two different sheets. That is why there is no single authoritative SDS for a substance to download — what there is, is the job of collecting the sheets for the products you hold and keeping them current as suppliers revise them.

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