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A3219

Sigma-Aldrich

2,2′-Azino-bis(3-ethylbenzothiazoline-6-sulfonic acid)

Liquid Substrate System

Synonym(s):
ABTS
MDL number:
PubChem Substance ID:
NACRES:
NA.83

Quality Level

form

liquid

storage temp.

2-8°C

SMILES string

CCN1C(\Sc2cc(ccc12)S(O)(=O)=O)=N\N=C3/Sc4cc(ccc4N3CC)S(O)(=O)=O

InChI

1S/C18H18N4O6S4/c1-3-21-13-7-5-11(31(23,24)25)9-15(13)29-17(21)19-20-18-22(4-2)14-8-6-12(32(26,27)28)10-16(14)30-18/h5-10H,3-4H2,1-2H3,(H,23,24,25)(H,26,27,28)/b19-17-,20-18-

InChI key

ZTOJFFHGPLIVKC-CLFAGFIQSA-N

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General description

The product is supplied as a ready-to-use one component substrate for peroxidase consisting 2,2′-azino-bis (3-ethylbenz-thiazoline-6-sulfonic acid) in an acidic buffer. The substrate is colorless before reacting with peroxidase and produces a blue-green color reaction product after reacting with it. 1% sodium dodecyl sulfate (SDS) may be used to stop the reaction during end-point assays. Since this substrate produces a soluble reaction product, it is not recommended for immunoblotting or histochemical applications.

Application

2,2′-Azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) has been used as a peroxidase substrate in ELISA experiment. This substrate gives a green color soluble end product. It has also been used as a colloidal preparation spread over the standard media plates, to evaluate the lignin oxidation activity. Presence of green coloration of the substrate exhibits microbial laccase activity.

Biochem/physiol Actions

2,2′-Azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) is a cation and undergoes oxidation in the presence of hydrogen peroxide. The oxidized ABTS is a blue-green product and is measurable colorimetrically. A combination of ABTS, hydrogen peroxide and myoglobin is a standard system employed for measuring total antioxidant capacity(TAC) from samples. ABTS method is flexible at varying pH and most widely used. ABTS is a substrate for phenol oxidase enzyme.

Physical form

Ready-to-use.

Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

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Certificate of Origin

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