3,6-Dichlorotrimellitic anhydride

• CAT Number: I013800
• CAS Number: 81742-10-1
• Molecular Formula: C₉H₂Cl₂O₅
• Molecular Weight: 261.02
• Purity: ≥95%
• Target: Dye Reagents
• Solubility: 10 mM in DMSO
• IUPAC Name: 4,7-dichloro-1,3-dioxo-2-benzofuran-5-carboxylic acid
• InChI: InChI=1S/C9H2Cl2O5/c10-3-1-2(7(12)13)6(11)5-4(3)8(14)16-9(5)15/h1H,(H,12,13)
• InChIKey: OCUQMPDZMXSVFG-UHFFFAOYSA-N
• SMILES: C1=C(C(=C2C(=C1Cl)C(=O)OC2=O)Cl)C(=O)O

3,6-Dichlorotrimellitic anhydride (CAT: I013800) is an important chemical compound used as a key precursor in the synthesis of various dichlorinated fluoresceins and rhodamines. These chlorinated fluoresceins and rhodamines, such as TET (Tetrachloro-6-carboxyfluorescein) and HEX (Hexachloro-6-carboxyfluorescein), are extensively employed for labeling oligonucleotides and in DNA sequencing applications. The introduction of chlorine atoms onto the fluorescein or rhodamine core enhances their fluorescence properties and enables their specific use as fluorescent probes in molecular biology research and diagnostics.