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HomeProduct name listSITS

SITS

Synonym(s):Disodium 4-acetamido-4′-isothiocyanato-stilben-2,2′-disulfonate;SITS

  • CAS NO.:51023-76-8
  • Empirical Formula: C17H12N2Na2O7S3
  • Molecular Weight: 498.46
  • MDL number: MFCD00007485
  • EINECS: 256-919-4
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-12-18 14:08:57
SITS Structural

What is SITS?

Chemical properties

Light Yellow Solid

The Uses of SITS

A fluorescent label for the specific and reversible labelling of the outer components of the plasma membrane. The reagent reacts with a fixed number of sites on the surface of cells concerned with anion permeation; does not pass through the osmotic barrier of the membrane; reacts under physiological conditions of temperature, pH and tonicity; and is detectable in small amounts. SEE ALSO NOTES FOR DIDS (CAT#D460600). Fluorescence: max. Abs. l = 336nm, max. Em. l = 436 nm.

The Uses of SITS

Fluorescent marker for membranes; inhibits anion permeability of membranes. Also inactivates Na,K-ATPase, by covalent modification of a specific Lys residue.

Properties of SITS

Melting point: >300°C (dec.)
storage temp.  -20°C
solubility  Soluble in water, methanol, dimethyl sulfoxide
form  powder
color  Yellow or tan-yellow
λmax 336 nm
BRN  9177451
Stability: Temperature sensitive - recommended storage at -20oC
Biological Applications Chloride channel blockers; anion transport inhibitors; treating cancer,glaucoma,heart diseases,viral diseases
CAS DataBase Reference 51023-76-8(CAS DataBase Reference)
EPA Substance Registry System Benzenesulfonic acid, 5-(acetylamino)-2-[2-(4-isothiocyanato-2-sulfophenyl)ethenyl]-, disodium salt (51023-76-8)

Safety information for SITS

Signal word Danger
Pictogram(s)
ghs
Exclamation Mark
Irritant
GHS07
ghs
Health Hazard
GHS08
GHS Hazard Statements H302:Acute toxicity,oral
H315:Skin corrosion/irritation
H319:Serious eye damage/eye irritation
H334:Sensitisation, respiratory
H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes P302+P352:IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Computed Descriptors for SITS

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