2,3,3-三甲基-5-磺酸基-3H-吲哚 (CAS No.132557-73-4)

Product Name:2,3,3-Trimethyl-3H-indole-5-sulfonic acid triethylamine salt

English Name:2,3,3-Trimethyl-3H-indole-5-sulfonic acid triethylamine salt

CAS No.:132557-73-4

Aliases:Triethylammonium 2,3,3-trimethyl-3H-indole-5-sulfonate, 5-Sulfo-2,3,3-trimethylindole triethylamine salt, 2,3,3-Trimethylindolenine-5-sulfonic acid triethylamine salt

Molecular Formula:C17H28N2O3S

Physical Properties:White to off-white crystalline powder. It is the triethylamine salt of 2,3,3-trimethyl-3H-indole-5-sulfonic acid, freely soluble in polar solvents such as water, methanol and N,N-dimethylformamide, and slightly soluble in lower-polarity solvents such as ethanol and acetone. Store in a sealed, light-protected, dry place.

Uses:This product is an intermediate for the synthesis of water-soluble cyanine dyes, used to prepare indocyanine-type fluorescent probes and biological labeling reagents. The sulfonated cyanine dyes derived from it are widely used in fluorescence imaging, flow cytometry and molecular diagnostics.

Technical Specifications:

Appearance: white to off-white crystalline powder;

Assay (HPLC): ≥98%;

Solubility: soluble in water, methanol and DMF; slightly soluble in ethanol and acetone;

Water content (Karl Fischer): ≤0.5%;

Storage: keep sealed, light-protected, in a cool and dry place.