Complexes of functionalized tetraazacyclododecane chelates with

Details Complexes of functionalized tetraazacyclododecane chelates with Complexes of functionalized tetraazacyclododecane chelates with

1993-10-22

1995-06-27

Higel, Floyd D.

Organic compounds -- part of the class 532-570 series

Organic compounds

Unsubstituted hydrocarbyl chain between the ring and the -c-...

540452, 540474, 534 10, 534 14, 534 15, 534 16, C07D25102, C07D25702, C07D25900, C07F 500, C07F 1300, C07R 1500

Patent

active

054281547

ABSTRACT:
The invention is a chelate of formula I: ##STR1## wherein R.sub.1-4 is --CH.sub.2 COOH;

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