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Item # Unit Size
25 g

For Research Use Only Products

ChemicalName: trans-1,2-Diaminocyclohexane-N,N,N',N'-tetraacetic acid, monohydrate
CAS: 125572-95-4

Appearance: White powder
Purity: ≥99.0% (Titration)
MW: 364.35, C14H22N2O8, H2O

Storage Condition: ambient temperature
Shipping Condition: ambient temperature

Chemical Structure

Product Description
CyDTA is utilized for masking various metal ions. The two amino groups of CyDTA are in the trans formation, and its free acid is watersoluble. CyDTA chelates at a slower rate than EDTA with metal ions, especially Al, C, Ni, and Zr. However, the stability constants of CyDTAmetal complexes are higher than that of EDTA. Dojindo offers highly purified CyDTA for use as a masking reagent on automatic amino acid analyzers. It does not interfere with the ninhydrin reaction.

Table of Stability Constants
R. Pribil, Collection Czechoslov. Chem. Commun., 20 162 (1955);
M. R. Verma, et al., Nature, 179, 1244 (1957);
R. Pribil, et al., Talanta, 10, 1287 (1963);
K. E. Burke et al., Anal. Chem., 36, 172 (1964);
R. Pribil, et al., Chemist-Analyst, 55, 38 (1966);
W. H. Evans, Analyst, 92, 685 (1967);
D.E. Jordan, et al., Anal. Chim. Acta, 37, 42 (1967);
D. L. Fuhrman, et al., Talanta, 14, 1199 (1967);
L. Szekeres, Microchem. J., 13, 349 (1970);
G. S. Yoneda, et al., Bioinorg. Chem., 8, 369 (1978);
E. J. Billo, et al., J. Inorg. Biochem., 10, 331 (1979);
T. Obe, et al., Radioisotopes, 36, 384 (1987);
K. Saeki, et al., J. Biochem., 106, 606 1989).
N, Kurebayashi, et al., J. Muscle Res. Cell
Motil., 12, 355 (1991); T. Fujita, et al., Clin. Chem., 39, 2130 (1993);
M. C. Silvestrini, et al., Biochimie, 77, 531 (1995).