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SITS

SITS Structure
SITS structure
CAS No.
51023-76-8
Chemical Name:
SITS
Synonyms
SIST;SITS;SITS, SODIUM SALT;SITS, DISODIUM SALT;SITS ISO 9001：2015 REACH;STILBENE ISOTHIOCYANATE SULFONIC ACID (SITS);4-ACETAMIDO-4'-ISOTHIOCYANATOSTILBENE-2- 2'-DISULFO;acetamidoisothiocyanato-stilbenedisulfonic acid disodium;4-Acetamido-4′-isothiocyanato-2,2′-stilbenedisulfonic acid;4-ACETAMIDO-4'-ISOTHIOCYANATO-STILBENE-2 ,2'-DISULF.ACID-NA
CBNumber:
CB6372291
Molecular Formula:
C17H12N2Na2O7S3
Molecular Weight:
498.46
MDL Number:
MFCD00007485
MOL File:
51023-76-8.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-05-28 03:24:03
Request For Quotation

SITS Properties

Melting point >300°C (dec.)
storage temp. -20°C
solubility Soluble in water, methanol, dimethyl sulfoxide
form powder
color Yellow or tan-yellow
Appearance Solid Powder
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
InChIKey NPAWAMRXPHRVQY-WTVBWJGASA-L
SMILES [Na+].[Na+].CC(=O)Nc1ccc(\C=C\c2ccc(cc2S([O-])(=O)=O)N=C=S)c(c1)S([O-])(=O)=O
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)
UNSPSC Code 12352202
NACRES NA.77

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)Health Hazard (GHS08)
GHS07,GHS08
Signal word  Danger
Hazard statements  H302-H315-H319-H334-H335
Precautionary statements  P301+P312+P330-P302+P352-P305+P351+P338
target organs Respiratory system
PPE dust mask type N95 (US), Eyeshields, Faceshields, Gloves
Hazard Codes  Xn
Risk Statements  22-36/37/38-42
Safety Statements  22-26-36/37
WGK Germany  3
F  8-10-21
TSCA  TSCA listed
HS Code  2930909899
Storage Class 11 - Combustible Solids
Hazard Classifications Acute Tox. 4 Oral
Eye Irrit. 2
Resp. Sens. 1
Skin Irrit. 2
STOT SE 3

SITS price More Price(32)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich A0554 4-Acetamido-4′-isothiocyanato-2,2′-stilbenedisulfonic acid disodium salt hydrate ≥80% 51023-76-8 250mg $277 2026-04-30 Buy
Sigma-Aldrich A0554 4-Acetamido-4′-isothiocyanato-2,2′-stilbenedisulfonic acid disodium salt hydrate ≥80% 51023-76-8 1g $918 2026-04-30 Buy
TRC TRC-A158450-250MG 4-Acetamido-4'-isothiocyanatostilbene-2,2'-disulfonic Acid, Sodium Salt 51023-76-8 250mg $179 2026-06-03 Buy
TRC TRC-A158450-1G 4-Acetamido-4'-isothiocyanatostilbene-2,2'-disulfonic Acid, Sodium Salt 51023-76-8 1g $658 2026-06-03 Buy
TRC TRC-A158450-100MG 4-Acetamido-4'-isothiocyanatostilbene-2,2'-disulfonic Acid, Sodium Salt 51023-76-8 100mg $138 2026-06-03 Buy
Product number Packaging Price Buy
A0554 250mg $277 Buy
A0554 1g $918 Buy
TRC-A158450-250MG 250mg $179 Buy
TRC-A158450-1G 1g $658 Buy
TRC-A158450-100MG 100mg $138 Buy

SITS Chemical Properties, Uses, Production

Description

SITS is an amine-reactive fluorescent probe for studying ion transporter.

Chemical Properties

Light Yellow Solid

Uses

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.

Uses

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

SITS Preparation Products And Raw materials

Raw materials

Preparation Products

SITS Suppliers

Global Suppliers ( 53)
Supplier Tel Email Country ProdList Advantage
J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
3B Pharmachem (Wuhan) International Co.,Ltd. 18930552037 3bsc@sina.com China 15813 69
Chemsky（shanghai）International Co.,Ltd. 021-50135380 shchemsky@sina.com China 32273 50
Tianjin heowns Biochemical Technology Co., Ltd. 400 638 7771 sales@heowns.com China 14412 57
S.Z. PhyStandard Bio-Tech. Co., Ltd. 0755-83725681-603 China 4484 50
Beijing HuaMeiHuLiBiological Chemical 010-56205725 waley188@sohu.com China 12323 58
Chengdu HuaXia Chemical Reagent Co. Ltd 400-1166-196 13458535857 cdhxsj@163.com China 13323 58
Sigma-Aldrich 021-61415566 800-8193336 orderCN@merckgroup.com China 51389 80
Amadis Chemical Company Limited 571-89925085 sales@amadischem.com China 131885 58
Shandong Ono Chemical Co., Ltd. 0539-6362799 20） China 10007 58
Supplier Advantage
J & K SCIENTIFIC LTD. 76
3B Pharmachem (Wuhan) International Co.,Ltd. 69
Chemsky（shanghai）International Co.,Ltd. 50
Tianjin heowns Biochemical Technology Co., Ltd. 57
S.Z. PhyStandard Bio-Tech. Co., Ltd. 50
Beijing HuaMeiHuLiBiological Chemical 58
Chengdu HuaXia Chemical Reagent Co. Ltd 58
Sigma-Aldrich 80
Amadis Chemical Company Limited 58
Shandong Ono Chemical Co., Ltd. 58

View Latest Price from SITS manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
SITS pictures 2026-08-20 SITS
51023-76-8
 $1.10 1g 99.00% 100 Tons Min Dideu Industries Group Limited
4-Acetamido-4`-isothiocyanatostilbenedisulfonic acid disodium salt pictures 2020-02-26 4-Acetamido-4`-isothiocyanatostilbenedisulfonic acid disodium salt
51023-76-8
 1KG 99.0%+ Shaanxi Dideu Medichem Co. Ltd
  • SITS pictures
  • SITS
    51023-76-8
  • $1.10
  • 99.00%
  • Dideu Industries Group Limited

51023-76-8 (SITS) Related Search:

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4,4'-Diaminostilbene dihydrochloride 4-Aminostilbene 4-Methylformanilide trans-Stilbene 4-Acetamido-4'-aminostilbene-2,2'-disulfonic acid, disodium salt
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SITS:Ion Channels o-Toluenesulfonic acid, sodium salt 4-Acetamido-4'-isothiocyanatostilbene-2,2'-disulfonic acid, sodium salt [sits]

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disodium 5-acetamido-2-[2-(4-isothiocyanato-2-sulphonatophenyl)vinyl]benzenesulphonate 4-ACETAMIDO-4'-ISOTHIOCYANATO-STILBENE-2 ,2'-DISULF.ACID-NA 4-ACETAMIDO-4'-ISOTHIOCYANATOSTILBENE-2- 2'-DISULFO acetamidoisothiocyanato-stilbenedisulfonic acid disodium 4-Acetamido-4μ-isothiocyanato-2,2μ-stilbenedisulfonic acid hydrate disodium salt SITS, Disodium 4-acetamido-4μ-isothiocyanato-stilben-2,2μ-disulfonate 4-Acetylamino-4'-isothiocyanatostilbene-2,2'-disulfonic acid disodium salt 5-(Acetylamino)-2-[2-(4-isothiocyanato-2-sulfophenyl)ethenyl]benzenesulfonic acid disodium salt 4-acetamido-4'-isothiocyanato-2,2'-stilbenedisulfonic acid disodium salt hydrate disodium 4-acetamido-4'-isothiocyanato-stilben-2,2'-disulfonate 4-ACETAMIDO-4''-ISOTHIOCYANOSTILBENE-2,2''-DISULPHONIC ACID SODIUM SALT 4-ACETAMIDO-4'-ISOTHIOCYANATOSTILBENE-2,2'-DISULFONIC ACID, SODIUM SALT 4-ACETAMIDO-4'-ISOTHIOCYANOSTILBENE-2,2'-DISULFONIC ACID DISODIUM SALT 4-ACETAMIDO-4'-ISOTHIOCYANOSTILBENE-2,2'-DISULFONIC ACID, SODIUM SALT disodium 5-acetamido-2-[(E)-2-(4-isothiocyanato-2-sulfonatophenyl)ethenyl]benzenesulfonate 5-(Acetylamino)-2-[2-[4-isothiocyanato-2-(sodiooxysulfonyl)phenyl]ethenyl]benzenesulfonic acid sodium salt Disodium 4-acetylamino-4'-isothiocyanatostilbene-2,2'-disulfonate benzenesulfonicacid,5-(acetylamino)-2-[2-(4-isothiocyanato-2-sulfophenyl)ethe SIST SITS, SODIUM SALT SITS SITS, DISODIUM SALT DisodiuM 4-AcetaMido-4'-isothiocyanatostilbene-2,2'-disulfonate 4-AcetaMido-4`-isothiocyanatostilbenedisulfonic acid disodiuM salt SITS [4-AcetaMido-4'-isothiocyanatostilbene-2,2'-disulfonic acid, disodiuM salt] 4-ACETAMIDO-4'-ISOTHIOCYANATOSTILBENE-2,2'-DISULFONIC ACID DISODIUM SALT STILBENE ISOTHIOCYANATE SULFONIC ACID (SITS) 4-acetamido-40-isothiocyanato-2,20-stilbenedisulfonic Acid Disodium Salt Benzenesulfonic Acid, 5-(acetylamino)-2-[2-(4-isothiocyanato-2-sulfophenyl) ethenyl]-, Disodium Salt Disodium 4-acetamido-40-isothiocyanatostilbene-2,20-disulfonate 4-Acetamido-4′-isothiocyanato-2,2′-stilbenedisulfonic acid 4-Acetamido-4'-isothiocyanatostilbene-2,2'-disulfonicAcid,SodiumSal SITS ISO 9001：2015 REACH 4-Acetamido-4'-isothiocyanatostilbene-2,2'-disulfonic acid (disodium) 4-Acetamido-4’-isothiocyanatostilbene-2，2’-disulfonic Acid， Sodium Salt 51023-76-8 C17H12N2O7S3Na2 C17H12N2Na2O7S3 Biochemicals and Reagents BioChemical Chelators Enzyme Inhibitors by Type Enzyme Inhibitors Enzymes, Inhibitors, and Substrates Fluorescent Labels Fluorescent Probes, Labels, Particles and Stains Other Fluorescent Labels Aromatics Sulfur & Selenium Compounds Stilbene marker Fluorescent Labels & Indicators