The present invention relates to a compound of formula (I) wherein R1, R2 each independently of the other are identical or different organic radicals which do not contain Zerewitinoff-active hydrogen, and R4, R5, R6 each independently of the others are saturated, linear or branched organic radicals which do not contain Zerewitinoff-active hydrogen and which are also optionally substituted in the chain by heteroatoms, for use in a polyurea system which is provided in particular for sealing, bonding, gluing or covering cell tissue. The invention further provides a polyurea system comprising the compound according to the invention, and a metering system for the polyurea system according to the invention.
