ROX NHS ester, 5-isomer

• CAT Number: I035713
• CAS Number: 209734-74-7
• Molecular Formula: C37H33N3O7
• Molecular Weight: 631.69
• Purity: 98%
• Synonyms: ROX-SE, 5-Carboxy-X-rhodamine N-succinimidyl ester
• Solubility: Soluble in DMSO
• Appearance: Solid powder
• Storage: Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).
• IUPAC Name: 5-Carboxy-X-rhodamine N-succinimidyl ester
• InChI: InChI=1S/C37H33N3O7/c41-29-11-12-30(42)40(29)47-37(45)22-9-10-23(26(19-22)36(43)44)31-27-17-20-5-1-13-38-15-3-7-24(32(20)38)34(27)46-35-25-8-4-16-39-14-2-6-21(33(25)39)18-28(31)35/h9-10,17-19H,1-8,11-16H2
• InChIKey: BTTBJYLMDASSAS-UHFFFAOYSA-N
• SMILES: O=C(ON1C(CCC1=O)=O)C2=CC=C(C(C([O-])=O)=C2)C(C3=CC(CCC4)=C(N4CCC5)C5=C3O6)=C(C=C7CCC8)C6=C9C7=[N+]8CCC9

ROX NHS Ester, 5-Isomer(CAT: I035713) is a high-purity, amine-reactive fluorescent dye commonly used in molecular biology and biochemistry research. It features a rhodamine-based structure, emitting strong red fluorescence, making it ideal for applications such as fluorescence microscopy, flow cytometry, and nucleic acid labeling. Its NHS ester functional group enables efficient covalent binding to primary amines on proteins, peptides, or other biomolecules. Known for its photostability and high quantum yield, ROX NHS Ester, 5-Isomer is a reliable tool for creating stable fluorescent conjugates, facilitating sensitive detection in diagnostic assays, molecular tracking, and advanced imaging techniques.