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A9043

Sigma-Aldrich

S-Acetylthioglycolic acid N-hydroxysuccinimide ester

≥95% (TLC), powder

Synonym(s):

N-Succinimidyl (acetylthio)acetate, N-Succinimidyl S-acetylthioglycolate, S-Acetylthioglycolic acid NHS ester, SATA

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About This Item

Empirical Formula (Hill Notation):
C8H9NO5S
CAS Number:
76931-93-6
Molecular Weight:
231.23
Beilstein/REAXYS Number:
7815491
MDL number:
MFCD00036891
UNSPSC Code:
12352100
PubChem Substance ID:
24891221
NACRES:
NA.22

Quality Level

200

assay

≥95% (TLC)

form

powder

solubility

acetonitrile: 50 mg/mL
DMF: soluble

storage temp.

−20°C

SMILES string

CC(=O)SCC(=O)ON1C(=O)CCC1=O

InChI

1S/C8H9NO5S/c1-5(10)15-4-8(13)14-9-6(11)2-3-7(9)12/h2-4H2,1H3

InChI key

FLCQLSRLQIPNLM-UHFFFAOYSA-N

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Application

Thiolating reagent for primary amines; thiol can be deprotected under mild conditions. Typically, couples initially to a molecule containing primary amine by amide bond buffered at pH 7.5. Deprotection may be accomplished with 0.05 M hydroxylamine at neutral pH. Useful for preparation of enzyme immunoconjugates and hapten carrier molecule conjugates.

Other Notes

Note that the ester couples very efficiently to primary amines compared to other thiolating reagents. In addition, this reagent will neutralize original amine positive charge.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Certificates of Analysis (COA)

Lot/Batch Number
0000395002
0000383550
0000332326
0000358695
0000358694

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Screening of monoclonal antibodies using antigens labeled with acetylcholinesterase.
Y Frobert et al.
Methods in molecular biology (Clifton, N.J.), 80, 57-68 (1998-07-17)
Magnus Bergkvist et al.
Methods in molecular biology (Clifton, N.J.), 751, 381-400 (2011-06-16)
Over the last decade, scanning probe microscopy (SPM) techniques, such as atomic force microscopy (AFM), have played an important role in a variety of biophysical research efforts. This straightforward technique has the capability to measure forces down to a few
Yi Wang et al.
Nature protocols, 2(4), 972-978 (2007-04-21)
The mercaptoacetyltriglycine (MAG3) chelator has been shown to stably complex technetium-99m (99mTc) for nuclear imaging and radiorhenium (186/188Re) for tumor radiation therapy studies. The bifunctional N-hydroxysuccinimidyl ester of MAG3 with S-acetyl protection (N-hydroxysuccinimidyl S-acetylmercaptoacetyltriglycinate (NHS-MAG3)) has been successfully used to
M H Vingerhoeds et al.
Pharmaceutical research, 13(4), 604-610 (1996-04-01)
Immuno-enzymosomes are tumor-specific immunoliposomes bearing enzymes on their surface. These enzymes are capable of converting relatively nontoxic prodrugs into active cytostatic agents. The enzyme beta-glucuronidase (GUS)4 was coupled to the external surface of immunoliposomes directed against ovarian carcinoma cells. This
Nejat Düzgüneş et al.
Methods in enzymology, 391, 351-373 (2005-02-22)
The intracellular activity of certain antiviral agents, including antisense oligonucleotides, acyclic nucleoside phosphonates, and protease inhibitors, is enhanced when they are delivered in liposome-encapsulated form. In this chapter we describe the preparation of pH-sensitive liposomes encapsulating antisense oligonucleotides, ribozymes, and
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