Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1978-09-13
1981-01-27
Coughlan, Jr., Paul M.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
23230B, 424 1, 2523011R, C07C10352
Patent
active
042474531
ABSTRACT:
The present invention encompasses compounds I and II, mixtures of I and II and acid addition salts thereof wherein R is hydrogen or loweralkyl having 1-3 carbon atoms, as well as compounds wherein the phenol moiety is labeled with .sup.125 I or .sup.131 I. The radiolabeled compounds are useful in radiochemical assaying for folic acid. ##STR1##
REFERENCES:
patent: 3989812 (1976-11-01), Barrett et al.
Abbott Laboratories
Coughlan, Jr. Paul M.
McDonnell John J.
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