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ATBTA-Eu3+
(CAS RN:601494-52-4 Product Number:A2083)

Structure

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ATBTA-Eu3+
Synonym Sodium [4'-(4'-Amino-4-biphenylyl)-2,2':6',2''-terpyridine-6,6''-diylbis(methyliminodiacetato)]europate(III)

General Information

Product Number A2083

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Purity/Analysis Method >90.0%(HPLC)(T)
Storage Temperature
M.F. / M.W. C37H30EuN6NaO8=861.63
CAS RN 601494-52-4
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MDL Number
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Specification

Purity(HPLC) min. 90.0 area%
Purity(Chelometric Titration) min. 90.0 %
Water max. 10.0 %

References

PubChem SID 87560385

Transport Information

HS Number 2933399990

Application

Europium Fluorescent Labeling Reagent suitable for Time-resolved Fluorometry

 ATBTA-Eu3+ is a europium chelate complex and can be used as a fluorescent labeling reagent. ATBTA-Eu3+ is easily labeled to protein etc. after conversion to DTBTA-Eu3+.

A2083

 The new lanthanide chelate reagent, DTBTA-Eu3+, has a high stability constant, and therefore the problem of fluorescence intensity change in different buffers has been greatly reduced. DTBTA-Eu3+ has also several advantages such as the intensity stability in water for a long period, and the stability against photo-bleaching.

Typical Procedure: Preparation of DTBTA-Eu3+
 Dissolve 2mg of ATBTA-Eu3+ [A2083] in 60μL of 0.1M acetate buffer (pH4.9). This solution is added 0.43mg of Cyanuric Chloride [C0460] in 25μL of acetone, and stirred for 30 min. The reaction mixture is added dropwise to 1mL of acetone, and formed precipitate is centrifuged. After washing with 0.5mL of acetone twice, the yellow powder is dried in vacuum for 1 h. Dissolve the powder in 1mL of carbonate buffer gives (pH9) for labeling. This solution contains ca. 2mM of labeling reagent.

Warning
 This labeling reagent is deactivated by hydrolysis, especially in alkali solution. The reagent dissolved in water should be used immediately. For temporary storage, the reagent should be dissolved in buffer solution at acidic pH (pH~5) and kept at 0ºC.


Please refer to “Anti-DTBTA-Eu3+ Antibody” for the application of the DTBTA-Eu3+ label.

References

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