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A0554

Sigma-Aldrich

4-Acetamido-4′-isothiocyanato-2,2′-stilbenedisulfonic acid disodium salt hydrate

powder, ≥80%

Synonym(s):

Disodium 4-acetamido-4′-isothiocyanato-stilben-2,2′-disulfonate, SITS

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About This Item

Empirical Formula (Hill Notation):
C17H12N2Na2O7S3 · xH2O
CAS Number:
Molecular Weight:
498.46 (anhydrous basis)
Beilstein:
9177451
EC Number:
MDL number:
UNSPSC Code:
12352202
PubChem Substance ID:
NACRES:
NA.77

product name

4-Acetamido-4′-isothiocyanato-2,2′-stilbenedisulfonic acid disodium salt hydrate, ≥80%

Quality Level

Assay

≥80%

form

powder

storage temp.

−20°C

SMILES string

[Na+].[Na+].CC(=O)Nc1ccc(\C=C\c2ccc(cc2S([O-])(=O)=O)N=C=S)c(c1)S([O-])(=O)=O

InChI

1S/C17H14N2O7S3.2Na/c1-11(20)19-15-7-5-13(17(9-15)29(24,25)26)3-2-12-4-6-14(18-10-27)8-16(12)28(21,22)23;;/h2-9H,1H3,(H,19,20)(H,21,22,23)(H,24,25,26);;/q;2*+1/p-2/b3-2+;;

InChI key

NPAWAMRXPHRVQY-WTVBWJGASA-L

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Application

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

Other Notes

Predominantly trans-isomer

Pictograms

Health hazardExclamation mark

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 4 Oral - Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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C H Pedemonte et al.
FEBS letters, 314(1), 97-100 (1992-12-07)
The sodium pump or Na,K-ATPase, maintains the Na+ and K+ gradients across eukaryotic cell membranes at the expense of ATP. Incubation of purified canine renal Na,K-ATPase with 4-acetamido-4'-isothiocyanatostilbene-2,2'-disulfonic acid (SITS) inhibited the ATPase activity. Both the labeling of the protein
M Montana Quick et al.
Journal of the American Society for Mass Spectrometry, 28(7), 1462-1472 (2017-03-21)
N-terminal derivatization of peptides with the chromogenic reagent 4-acetamido-4-isothiocyanatostilbene-2,2-disulfonic acid (SITS) is demonstrated to enhance the efficiency of 266 nm ultraviolet photodissociation (UVPD). Attachment of the chromophore results in a mass shift of 454 Da and provides significant gains in the number
Dennis Kolosov et al.
Insect biochemistry and molecular biology, 116, 103263-103263 (2019-11-05)
Malpighian tubules (MTs) and the hindgut together constitute the excretory system of insects. Larvae of lepidopterans (butterflies and moths) demonstrate the so-called cryptonephric arrangement, where the distal blind end of each MT is embedded into the rectal complex. The rest
Pedro Gonçalves et al.
Naunyn-Schmiedeberg's archives of pharmacology, 379(4), 325-336 (2008-11-22)
The aim of this study was to investigate the putative influence of some pharmacological agents and drugs of abuse upon the apical uptake of butyrate (BT) into Caco-2 cells. The apical uptake of (14)C-BT by Caco-2 cells was (1) time
Donglin Guo et al.
American journal of physiology. Heart and circulatory physiology, 295(1), H97-H104 (2008-04-29)
T-wave alternans, characterized by a beat-to-beat change in T-wave morphology, amplitude, and/or polarity on the ECG, often heralds the development of lethal ventricular arrhythmias in patients with left ventricular hypertrophy (LVH). The aim of our study was to examine the

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