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A9043

S-Acetylthioglycolic acid N-hydroxysuccinimide ester

Name: S-Acetylthioglycolic acid N-hydroxysuccinimide ester
Brand: SIGMA

≥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:

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 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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Sigma-Aldrich

197327

S-Acetylmercaptosuccinic anhydride

Sigma-Aldrich

P1162

Palmitic acid N-hydroxysuccinimide ester

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Sulfhydryl selective reactions were explored to conjugate oligomers of a peptidomimetic integrin alphavbeta3 antagonist, 4-[2-(3,4,5,6-tetrahydropyrimidine-2-ylamino)ethyloxy]benzoyl-2-(S)-aminoethylsulfonylamino-beta-alanine (IA) to monoclonal antibody (MoAb) to increase integrin alphavbeta3 receptor-binding avidity. To generate sulfhydryl groups, N-succinimidyl-S-acetylthioacetate (SATA) was conjugated to both MoAb and IA. Sulfhydryl

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