Breakdown Product

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(1) A chemical derived from a parent molecule that has been altered, e.g., by heat, light, or enzymes
(2) Metabolite
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References in periodicals archive ?
Researchers showed that acetaminophen and its breakdown product activate glutathionylation in a dose-dependent way.
Since DDE is a stable breakdown product of DDT, this indicates mainly past ingestion.
One of these tests measures the breakdown products of a blood complement protein known as Factor B.
Researchers identified a DNA variant more common in women with lower levels of a particular oestrogen breakdown product.
Furthermore, the potential contamination of ground water by 1,3-dichloropropene, its toxic breakdown product, namely (EZ)-3-chloroacrylic acid, and the 11 unidentified manufacturing impurities were not adequately addressed.
Dublin City Coroner's Court heard Mark Finnegan's blood had 1.1 micrograms per mil of a breakdown product of the drug and 0.71 micrograms per mil of methadone.
Although it is probable that hydrogen cyanide was generated in the chemical reaction and was present in the gas cloud, cyanide has not been shown to be a breakdown product of MIC in human or animal systems.
They have been asked to provide urine samples before and after working one shift to measure the levels of cotinine - a metabolic breakdown product of nicotine.
In a widely discussed, widely embraced and widely derided study, Mary Wolff of the Mount Sinai School of Medicine concluded that women with high blood serum levels of DDE, a metabolic breakdown product of DDT, showed a quadrupled rate of breast cancer.
She was driving a Chevrolet Matiz on Market Street when she was found to have BZE, a cocaine breakdown product, in her blood.
In a study that was published in 2005, doctors at the Cincinnati Children's Environmental Health Center at the Cincinnati Children's Hospital Medical Center found that the higher a child's urine cotinine level (a breakdown product of nicotine and an indicator of tobacco smoke exposure that's excreted in the urine), the lower the performance on tests of math, reading, and visual-spatial skills.
Chief among these are DDE (dichlorodiphenyldichloroethylene), a breakdown product of the once widely used herbicide DDT (dichlorodiphenyltrichloroethane), and polychlorinated biphenyls (PCBs), once used as dielectric fluids in capacitors and transformers.