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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:
51023-76-8
Molecular Weight:
498.46 (anhydrous basis)
Beilstein:
9177451
EC Number:
256-919-4
MDL number:
MFCD00007485
UNSPSC Code:
12352202
PubChem Substance ID:
24890434
NACRES:
NA.77

product name

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

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
GHS08,GHS07

Signal Word

Danger

Hazard Statements

H302,H315,H319,H334,H335

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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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
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
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
Effect of two inhibitors of anion transport on the hydrolysis of glucose 6-phosphate by rat liver microsomes. Covalent modification of the glucose 6-P transport component.
M A Zoccoli et al.
The Journal of biological chemistry, 255(3), 1113-1119 (1980-02-10)
Kai Zhao et al.
Cellular and molecular life sciences : CMLS, 67(15), 2665-2678 (2010-04-03)
We have reported that chymotrypsin B (CtrB) is not just a digestive enzyme but is also stored in lysosomes. Herein, we demonstrated a broad distribution of CtrB and explored the involvement of CtrB in apoptosis. Exposure of RH-35 cells to
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