1. Sulfo-Cyanine7.5 Alkyne Sulfo-Cyanine7.5 is a near infrared fluorophore similar to indocyanine green (ICG), but possessing higher fluorescence quantum yield

2. Why BYF technology is superior In BYF technology, the superior early age strength contribution of calcium-sulfo-aluminates is combined with durability provided by belite.

3. 2¿, each independent of one another, represent a hydrogen atom, a halogen atom, a (C¿1?-C¿4?)-alkyl group, (C¿1?-C¿4?)-alkoxyl group, hydroxy-(C¿1?-C¿4?)-alkoxyl group, hydroxy group, nitro group, carboxyl group, sulfo group, amino group, said amino group can be substituted by (C¿1?-C¿4?)-alkyl group, or (C¿1?-C¿4?)-acyl groups, whereby the residuals R?