Patent 11618825 was granted and assigned to Pharmacophotonics, Inc. on April, 2023 by the United States Patent and Trademark Office.
The present invention relates generally to novel rhodamine dyes which upon conjugation with another molecule form single isomeric conjugation products. These novel rhodamine dyes contain only one single functional group on the rhodomine molecule for conjugation so that their conjugation products are single isomeric conjugation products.