Abstract: Novel fluorescent compounds that can be used for labelling tumour tissue, and the method for labelling tumour tissue the novel fluorescent compounds. Also, the application of the tumour tissue labelled with the novel fluorescent compounds as a monitoring tool, a diagnostic tool, or a tool for assisting with cancer surgery.

Abstract: Labels are disclosed capable of forming a covalent or non-covalent bond with a target molecule, particularly a biological molecule. The structure of these labels may consist of a dye covalently bound by one or more carbons on its chemical structure to one or more [FUNC] group(s), and optionally one or more [SOL] group(s). The structure of these labels allow selection of dyes from a wide variety of different excitation and emission wavelengths and allow easy functionalization of the dye without appreciably altering its spectral characteristics or its solubility characteristics.

Abstract: The present invention relates to labels capable of forming a covalent or non-covalent bond with a target molecule, consisting of a dye to which there is bonded in a covalent manner by one or more carbons of its chemical structure: one or more [FUNC] group(s), and optionally one or more [SOL] group(s), said label having the general formula: [DYE] representing the dye; [FUNC] each independently representing an —X-A-Z group, in which: X is chosen from the group consisting of an oxygen atom, a sulphur atom, an NR1R2 group, R1 and R2 each being independently of each other a hydrogen atom or a linear or branched C1-C30, preferably C1-C18 and more preferentially C1-C5 alkyl group; A is chosen from the group consisting of an alkylene group or an alkylene-arylene group; Z is a reactive chemical function; [SOL] each independently representing an —X?-A?-Z? group, in which: X? is chosen from the group consisting of an oxygen atom, a sulphur atom, an NR1R2 group, R1 and R2 each being independently of each o

Abstract: High purity phthalein derivatives are useful for medical applications and/or in the field of biotechnology. The phthalein derivatives are prepared by a method whereby a phthalic anhydride derivative is condensed with a naphthol or phenol derivative in an organic acid ester and the crystals of the resulting condensate are converted by action of a strong acid or one of its precursors in anhydrous medium.

Abstract: High purity phthalein derivatives are useful for medical applications and/or in the field of biotechnology. The phthalein derivatives are prepared by a method whereby a phthalic anhydride derivative is condensed with a naphthol or phenol derivative in an organic acid ester and the crystals of the resulting condensate are converted by action of a strong acid or one of its precursors in anhydrous medium.

Abstract: The invention concerns high purity phthalcin derivatives enabling their use for medical applications or in the field of biotechnology, as well as their preparation method whereby a phthatic anhydride derivative is condensed with a naphthol or phenol derivative in an organic acid ester and the crystals of the resulting condensate are converted by action of a strong acid or one of its precursors in anhydrous medium.

Abstract: The present invention relates to labels capable of forming a covalent or non-covalent bond with a target molecule, consisting of a dye to which there is bonded in a covalent manner by one or more carbons of its chemical structure: one or more [FUNC] group(s), and optionally one or more [SOL] group(s), said label having the general formula: [DYE] representing the dye; [FUNC] each independently representing an -X-A-Z group, in which: X is chosen from the group consisting of an oxygen atom, a sulphur atom, an NR1R2 group, R1 and R2 each being independently of each other a hydrogen atom or a linear or branched C1-C30, preferably C1-C18 and more preferentially C1-C5 alkyl group; A is chosen from the group consisting of an alkylene group or an alkylene-arylene group; Z is a reactive chemical function; [SOL] each independently representing an -X?-A?-Z? group, in which: X? is chosen from the group consisting of an oxygen atom, a sulphur atom, an NR1R2 group, R1 and R2 each being independently of ea

Abstract: The invention concerns high purity phthalcin derivatives enabling their use for medical applications or in the field of biotechnology, as well as their preparation method whereby a phthatic anhydride derivative is condensed with a naphthol or phenol derivative in an organic acid ester and the crystals of the resulting condensate are converted by action of a strong acid or one of its precursors in anhydrous medium.

Abstract: An angiography device including an endoscope designed to be inserted into a body cavity, a light source for emitting excitation light in a first wavelength range into the cavity, a digital camera for sensing an image of the body cavity in a second wave range that does not overlap the first wavelength range, and a screen for displaying the sense image, the first and second wavelength ranges lying in the infrared range.