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Uracil

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• Heterocyclic compounds
• Pyrimidines

• Thymine

• Dioxopyrimidine
• Pyrimidinedione

• The effect of thiouracil on the uptake of radioactive iodine by the thyroid gland of summer frogs (rana pipiens) (U.S. Atomic Energy Commission, Technical Information Division, 1950), by Samuel Arthur Matthews, U.S. Atomic Energy Commission, and Williams College (page images at HathiTrust)

• Mitotic synchronization of L-strain fibroblasts wuth 5-aminouracil as determined by time-lapse cinephotography (National Aeronautics and Space Administration ;, 1969), by Clarence D. Cone, Max Tongier, and Langley Research Center (page images at HathiTrust)

• Use of zidovudine (ZDV) to reduce perinatal HIV transmission in HRSA-funded programs (U.S. Dept. of Health & Human Services, Public Health Service, Health Resources & Services Administration, 1995), by United States. Health Resources and Services Administration (page images at HathiTrust)
• AIDS issues : hearings before the Subcommittee on Health and the Environment of the Committee on Energy and Commerce, House of Representatives, One Hundredth Congress, first [and second] session. (U.S. G.P.O. :, 1988), by United States. Congress. House. Committee on Energy and Commerce. Subcommittee on Health and the Environment (page images at HathiTrust)
• The spread of AIDS in the developing world : hearing before the Committee on International Relations, House of Representatives, One Hundred Fifth Congress, second session, September 16, 1998. (U.S. G.P.O. :, 1998), by United States House Committee on International Relations (page images at HathiTrust)
• El embarazo y el VIH : es el AZT mejor para ti y tu bebe? (U.S. Dept. of Health and Human Services, Public Health Service, 1995), by United States Public Health Service (page images at HathiTrust)
• Co mo vivir una vida positiva (Illinois Dept. of Public Health, 1996), by Illinois. Dept. of Public Health (page images at HathiTrust)
• Living positive (Illinois Dept. of Public Health, 2001), by Illinois. Dept. of Public Health (page images at HathiTrust)

• Is AZT the right choice for you and your baby? (U.S. Dept. of Health and Human Services, Public Health Service, 1995), by United States Public Health Service (page images at HathiTrust)

Items below (if any) are from related and broader terms.

• Heterocyclic compounds with indole and carbazole systems (Interscience Publishers, 1954), by Ward C. Sumpter and F. M. Miller (page images at HathiTrust)
• The chemistry of heterocyclic compounds (McGraw-Hill book company, inc., 1946), by Avery A. Morton (page images at HathiTrust; US access only)
• Die heterocyklischen verbindungen der organischen chemie. (Veit & comp., 1901), by E. Wedekind (page images at HathiTrust; US access only)
• Heterocyclic chemistry, an introduction. (Essential Books, 1959), by Adrien Albert (page images at HathiTrust; US access only)
• Chemie der Sechsgliedrigen heterocyklischen Systeme (Vieweg, 1899), by J. W. Bruhl (page images at HathiTrust)
• Ueber die Substitution des Chinolins und Tetrahydrochinolins in der 6-Stellung ... (Hamburg, 1925), by Paul Peters (page images at HathiTrust; US access only)
• Additionsreaktionen und Ringspaltungen einiger Heterozyklischer Verbindungen. : Ein Beitrag zur Lehre von der Valenzlinienverteilung ... (Winter, 1919), by Siegfried Skraup (page images at HathiTrust; US access only)
• Ueber Isatogene und Iso-Isatogene. (W. Coradi-Maag, 1921), by Adolf Bolliger (page images at HathiTrust; US access only)
• Studies in the heterocyclic series (1920), by Edward Tillson Howell (page images at HathiTrust; US access only)
• Studies in the heterocyclic series (1920), by Edward Larson (page images at HathiTrust; US access only)
• Studies in the heterocyclic series (1920), by John Hardenbergh Waldo (page images at HathiTrust; US access only)
• The evaluation of some related heterocyclic compounds as analytical reagents for metals : (Thesis) / Joseph Lawrence Walter (Oak Ridge, Tennessee : United States Atomic Energy Commission, Technical Information Service, 1955., 1955), by Joseph Lawrence Walter, University of Pittsburgh, and U.S. Atomic Energy Commission. New York Operations Office (page images at HathiTrust)
• Dipole moments of cyclic carbonic acid esters (L.G. Hanscom Field, Bedford, Massachusetts : Air Force Cambridge Research Laboratories, Office of Aerospace Research, United States Air Force, 1969., 1969), by B Arbuzov, T. G. Shavsha, and Air Force Cambridge Research Laboratories (U.S.) (page images at HathiTrust)
• Electron damage and defects in organic crystals (Berkeley, California : Lawrence Berkeley Laboratory, University of California, [1976]., 1976), by David George Howitt, Lawrence Berkeley Laboratory, and U.S. Atomic Energy Commission (page images at HathiTrust)

• Heterocycles (full serial archives)
• Pteridines (2018-) (partial serial archives)

• Ultraviolet absorption spectra of oxazolones and related compounds ([Lawrence] Radiation Laboratory, 1951), by Edward L. Bennett, Earl Hoerger, Lawrence Radiation Laboratory, and U.S. Atomic Energy Commission (page images at HathiTrust)

• Contributions à la préparation de dérivés hétérocycliques par cyclisation d'amines secondaires dibromées au moyen de substances contenant le méthylène actif. (Thomas & Hubert, 1928), by Francis F. Achermann (page images at HathiTrust; US access only)
• Synthesis in the heterocyclic series (1920), by Elmer Wade Adams (page images at HathiTrust; US access only)

• Preparation of new benzothiazoles. Acid anhydride and acid chloride derivatives of di-o-aminophenyl disulfide ... (New York, N.Y., 1925), by Arthur Stull (page images at HathiTrust)

• Bacille polychrome et actinomyces mordoré : recherches biologiques sur les bactéres bleues et violettes. Polychromisme. Corps bactériens et Cristaux colorés. Matière colorante cristallisée (J. B. Baillière, 1900), by Georges Thiry (page images at HathiTrust; US access only)

• Comparison of serum levels of 2,3,7,8-Tetrachlorodibenzo-p-Dioxin with indirect estimates of Agent Orange exposure among Vietnam veterans : final report (U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control, Center for Environmental Health and Injury Control, Agent Orange Projects, 1989), by Veterans Health Study (Centers for Disease Control), Frank DeStefano, Center for Environmental Health and Injury Control (U.S.), and Centers for Disease Control (U.S.) (page images at HathiTrust)
• Human exposure to phenoxy herbicides (Veterans Administration Central Office, Dept. of Medicine and Surgery, Agent Orange Projects Office, 1987), by T. L. Lavy, United States. Veterans Administration. Agent Orange Projects Office, and United States. Veterans Administration. Central Office (page images at HathiTrust)
• Dioxin treatment technologies. (Congress of the U.S., Office of Technology Assessment :, 1991), by United States Congress Office of Technology Assessment (page images at HathiTrust)
• Dioxin cleanup hearings before the Subcommittee on Investigations and Oversight of the Committee on Science and Technology, House of Representatives, Ninety-ninth Congress, first session, April 23; May 18, 1985. (U.S. G.P.O., 1985), by United States. Congress. House. Committee on Science and Technology. Subcommittee on Investigations and Oversight (page images at HathiTrust)
• Dioxin contamination of food and water : hearing before the Subcommittee on Health and the Environment of the Committee on Energy and Commerce, House of Representatives, One Hundredth Congress, second session, December 8, 1988. (U.S. G.P.O. :, 1989), by United States. Congress. House. Committee on Energy and Commerce. Subcommittee on Health and the Environment (page images at HathiTrust)
• Comparison of serum levels of 2,3,7,8-tetrachlorodibenzo-p-dioxin with indirect estimates of Agent Orange exposure among Vietnam veterans : final report : The Centers for Disease Control Veterans Health Study. (U.S. Dept. of Health and Human Services, Public Health Service, Centers for Disease Control, Center for Environmental Health and Injury Control, Agent Orange Projects, 1989), by Center for Environmental Health and Injury Control (U.S.). Agent Orange Projects (page images at HathiTrust)
• EPA has identified limited alternatives to incineration for cleaning up PCB and Dioxin contamination (The Office ;, 1995), by United States General Accounting Office (page images at HathiTrust)
• Dioxin and furan contamination in the manufacture of halogenated organic chemicals (Hazardous Waste Engineering Research Laboratory, 1986), by Anthony Lee, William Kelly, Beverly Campbell, and Hazardous Waste Engineering Research Laboratory (page images at HathiTrust)
• Mortality among U.S. workers employed in the production of chemicals contaminated with 2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD) : final report (U.S. Dept. of Health and Human Services, Public Health Service, Centers for Disease Control, National Institute for Occupational Safety and Health, Industrywide Studies Branch, 1991), by Marilyn A. Fingerhut and National Institute for Occupational Safety and Health. Industry-wide Studies Branch (page images at HathiTrust)
• National dioxin study : report to Congress. (United States Environmental Protection Agency, Office of Solid Waste and Emergency Response, 1987), by United States. Environmental Protection Agency. Office of Solid Waste and Emergency Response (page images at HathiTrust)

• Furfuryl alcohol from China, South Africa, and Thailand (U.S. International Trade Commission, 1994), by United States International Trade Commission (page images at HathiTrust)
• Furfuryl alcohol from Thailand (U.S. International Trade Commission, 1995), by United States International Trade Commission (page images at HathiTrust)
• Furfuryl alcohol from the People's Republic of China and South Africa (U.S. International Trade Commission, 1995), by United States International Trade Commission (page images at HathiTrust)
• Introduction to the nitrofurans (Eaton Laboratories, 1958), by Eaton Laboratories (page images at HathiTrust)
• Synthesis in the furane series. ([Ithaca, N. Y.], 1929), by Alvin Frost Shepard (page images at HathiTrust)
• Acylation of certain substituted and condensed thiophenes and furans (United States Atomic Energy Commission, Technical Information Service, 1950), by Martin W. Farrar, Robert Levine, University of Pittsburgh, and U.S. Atomic Energy Commission (page images at HathiTrust)
• Studies in the furane series (1919), by Edward Tillson Howell (page images at HathiTrust; US access only)
• Selected properties of 2-furaldehyde : a literature search (Carbide and Carbon Chemicals Co., 1953), by Frances L. Sachs, Carbide and Carbon Chemicals Corporation, U.S. Atomic Energy Commission, and Oak Ridge Y-12 Plant (page images at HathiTrust)
• Condensations effected by acidic catalysts. [Part] IV, The acylation of substituted and condensed thiophenes and furans (Oak Ridge, Tennessee : United States Atomic Energy Commission, Technical Information Service, 1950., 1950), by Martin W. Farrar, Robert Levine, University of Pittsburgh, and U.S. Atomic Energy Commission (page images at HathiTrust)
• Dioxin and furan contamination in the manufacture of halogenated organic chemicals (Hazardous Waste Engineering Research Laboratory, 1986), by Anthony Lee, William Kelly, Beverly Campbell, and Hazardous Waste Engineering Research Laboratory (page images at HathiTrust)

• The constitution of lactams resulting from the Beckmann transformation of certain cyclic aliphatic ketoximes. (New York city, 1933), by John Grant Hildebrand (page images at HathiTrust)

More items available under broader and related terms at left.