Stilbene Isothiocyanate Sulfonic Acid (SITS)

Name: Stilbene Isothiocyanate Sulfonic Acid (SITS)

CAS Registry Number: 51023-76-8

Molecular Formula: Stilbene Isothiocyanate Sulfonic Acid (SITS) / 51023-76-8

CA Index Name: Benzenesulfonic acid, 5-(acetylamino)-2-[2-(4-isothiocyanato-2-sulfophenyl)ethenyl]-, sodium salt (1:2)

Other Names: 4-Acetamido-4'-isothiocyanato-2,2'-stil-benedisulfonic acid disodium salt; Benzenesulfonic acid, 5-(acetylamino)-2-[2-(4-isothiocyanato-2-sulfophenyl) ethenyl]-, disodium salt; Disodium 4-acetamido-4'-iso-thiocyanatostilbene-2,2'-disulfonate; SITS

Merck Index Number: Not listed

Chemical / Dye Class: Stilbene

Molecular Formula: C₁₇H₁₂N₂Na₂O₇S₃

Molecular Weight: 498.46

Physical Form: Yellow or tan-yellow powder

Solubility: Soluble in water, methanol, dimethyl sulfoxide

Melting Point: > 200 °C

Absorption (λ_max): 336 nm

Emission (λ_max): 436 nm

Synthesis: Synthetic methods

Staining Applications: Neuronal axons; proteins; photochromes

Biological Applications: Chloride channel blockers; anion transport inhibitors; treating cancer, glaucoma, heart diseases, viral diseases