Back to results
US 4,048,304 AGranted
Polycyclic ether antibiotic for combating insects
AssigneePfizer Inc.
InventorsWalter D. Celmer, Walter P. Cullen, Charles E. Moppett, John R. Oscarson, John B. Routien
Life of this patent
Estimating the term…
Abstract
A new polycyclic ether antibiotic with anticoccidial, insecticidal and antimicrobial activity, its production by fermentation and methods for its recovery and purification are described.
Claims5
The method of combatting insects which comprises contacting said insects with an effective insecticidal amount of antibiotic compound 38,986 or a cationic salt thereof, said antibiotic compound when in the form as the free acid having an optical rotation of [.alpha]sub.D.sup.25.sub..degree. = - 7.5.degree. at a concentration of 1% of acetone;
- an average composition by weight of 65.11% carbon, 9.54% hydrogen and 25.35% oxygen (by difference);
- and, when pelleted in KBr, exhibiting characteristic absorption in the infrared region at the following wavelengths in microns:
- 2.98, 3.44, 5.75, 5.78, 6.85, 7.24, 7.98, 8.38, 8.65, 9.00, 9.23, 9.42, 9.67, 9.83, 10.10, 10.38, 10.92, 11.18, 11.45, 11.85, 13.40, 13.70 and 14.10.
Dependencies are inferred from the claim text.