S-(3-trimethoxysilyl)propyl 19-isocyanato-11-(6-isocyanatohexyl)-10,12-dioxo-2,9,11,13-tetraazanonadecanethioate

S-(3-trimethoxysilyl)propyl 19-isocyanato-11-(6-isocyanatohexyl)-10,12-dioxo-2,9,11,13-tetraazanonadecanethioate is a flammable liquid (flash point below 60 °C, Category 3). Store in a dedicated flammable storage cabinet, away from oxidisers and ignition sources. Use explosion-proof electrical equipment in storage areas. Containers must be kept tightly closed and grounded during transfer to prevent static discharge.

S-(3-trimethoxysilyl)propyl 19-isocyanato-11-(6-isocyanatohexyl)-10,12-dioxo-2,9,11,13-tetraazanonadecanethioate is classified as a serious long-term health hazard. Exposure must be minimised using engineering controls (local exhaust ventilation, closed systems). Biological and medical monitoring may be required. Refer to the full Safety Data Sheet (SDS) Section 8 for occupational exposure limits.

This substance carries the signal word DANGER, indicating the more severe hazard categories under GHS/CLP. Facilities handling S-(3-trimethoxysilyl)propyl 19-isocyanato-11-(6-isocyanatohexyl)-10,12-dioxo-2,9,11,13-tetraazanonadecanethioate should ensure a written hazard communication programme, including current SDS, employee training records, and GHS-compliant labelling on all containers.