11204530001 Roche

ABTS Buffer



Related Categories Biochemicals and Reagents, Enzyme Substrates, Enzymes, Inhibitors, and Substrates, Peroxidase Substrates, Substrates by Enzyme More...
form   solution
packaging   pkg of 125 mL
mfr. no.   Roche
shipped in   wet ice
storage temp.   2-8°C


Other Notes

For life science research only. Not for use in diagnostic procedures.

Preparation Note

Working concentration: Flow cytometry: 0.5 μg/100 μl (106 cells); Immunohistocytochemistry: 50 μg/ml
Working concentration of conjugate depends on application and substrate. Concentrations should be taken as a guideline.
Working solution: Dissolve one ABTS tablet (5 mg) in 5 ml of ABTS buffer. This solution has a light-green color. In microtiter plates, the solution is colorless A405 nm/1 cm should be <0.16. Work as clean as possible. Heavy metal ions or traces of peroxidase can produce a dark green ABTS solution. Such solutions are not suitable for the assay.


ABTS Buffer is a solvent for ABTS. ABTS solution is the ideal substrate solution for enzyme immunoassays with horseradish peroxidase (HRP) as a marker enzyme. Because of the high sensitivity of the reaction, autoreaders will often display "over" after several minutes.

General description

2,2′-azino-di-(3-ethylbenzthiazoline sulfonic acid) or ABTS acts as a substrate for HRP (horseradish peroxidase) conjugate during enzyme-linked immunosorbent assay (ELISA). It is the most sensitive, and stable substrate when compared to three other substrates namely, 5-aminosalicylic acid (5AS), O-phenylenediamine (OPD), O-tolidine (OT). It also produces the best visual results, where it gives a bluish-green color. ELISA using ABTS is a highly sensitive, specific and reproducible technique.

Legal Information

ABTS is a trademark of Roche

Safety & Documentation

Safety Information

NONH for all modes of transport


Certificate of Analysis

Protocols & Articles
Peer-Reviewed Papers


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