Consumers reach for highly watered - down hydrogen peroxide to clean out minor cuts and scrapes, but the chemical also could be useful for numerous industrial processes as different as making flexible foam seat cushions or
precursor chemicals for flame retardants.
Methane is of interest as a simple
precursor chemical for life.
Not exact matches
To do so, he sat down with The Merck Index, a standard reference manual
for chemicals, drugs, and other compounds, and turned to the section on the class of hormones to which norbolethone's
precursor belonged.
Simple aromatic molecules such as benzonitrile may be
precursors for polycyclic aromatic hydrocarbon formation, providing a
chemical link to the carriers of the unidentified infrared bands.
Methane,
for example, is the second strongest contributor to climate warming after CO2 and is also an ozone
precursor:
chemical reactions in the atmosphere involving methane produce ozone, a pollutant that presents significant health risks.
Comparing Purple Kush with another popular form of the same plant — the hemp - fiber producing Finola varietal — the group found that one gene critical
for churning out the
precursors to the
chemical that gives pot its kick, tetrahydrocannabinol or THC, had been turned off.
Ironically, cyanides are incredibly toxic to life once it's established, but they could be key ingredients in the
chemical precursors for life.
Dopamine, a molecule crucial
for signaling between neurons, can not cross this barrier, which is why its
chemical precursor, L - dopa, is used instead to treat Parkinson's disease.
16 Glycolaldehyde can react with a three - carbon sugar to form ribose, the basis
for both RNA and DNA, so the glycolaldehyde found in deep space may be a
chemical precursor to life on Earth.
Syria possesses about 1,000 metric tons of
chemicals for weapons, Walker said, with nearly all of it in the form of
chemical precursors for sarin and mustard gas.
These radicals, in turn, reacted with the remaining formamide to generate 2,3 - diaminomaleonitrile — DAMN
for short — which is a
chemical precursor to the nucleobases.
«The research group focused on three or four different catalytic reactions used in high production volume
chemicals, including this one
for producing a
precursor to nylon, which as an industry has enormous applications,» said Slowing, who is also an adjunct assistant professor of chemistry at Iowa State University.
They were looking
for a site with a venting process that produces a lot of hydrogen because of the potential it holds
for the
chemical, or abiotic, creation of organic molecules like methane — possible
precursors to the prebiotic compounds from which life on Earth emerged.
They then split each of these two strains into three groups and to each group added genes
for one of three different metabolic pathways that allow the microbes to make
chemical precursors for either gasoline, diesel, or jet fuel.
This lack of specificity allows the enzymes to bind to different
chemical precursors, which is the reason
for a larger number of products.
Thanks to this new interdisciplinary pursuit of astrochemistry, the 140 - foot went on to discover formic acid (you know it as insect venom), methanol, acetaldehyde (the
chemical responsible
for hangovers), and cyanoacetylene (a possible
precursor to the DNA acid cytosine).
The Orbitrap Mass Analyzer combined with advanced quadrupole, S - lens, and a high - performance HCD collision cell
for MS / MS plus features such as up to 18 hz scan rate, data - independent analysis (DIA), selected - ion monitoring (SIM), and spectral multiplexing up to ten
precursors / scan make this system a state - of - the - art instrument
for chemical and biochemical molecules analysis with up to 280,000 resolution, < 1 ppm mass accuracy, and femtogram sensitivity.
Carbohydrates provide
precursors for serotonin, the «joy and well - being» brain
chemical that can ward off depression and also be calming.
Different amino acids act as neurotransmitters, or may serve as
precursors for these
chemical messengers.
GLA is a
precursor to important biochemicals, such as prostaglandins, leukotrienes, and thromboxanes, which serve as
chemical mediators
for inflammatory and immune reactions.
Glycine is a
precursor for glutathione, greatly needed when the human body has been exposed to
chemicals or drugs.
The yields of target
chemical molecules produced from the acetate were also encouraging — as high as 26 - percent
for butanol, a fuel comparable to gasoline, 25 - percent
for amorphadiene, a
precursor to the antimaleria drug artemisinin, and 52 - percent
for the renewable and biodegradable plastic PHB.
The researchers basically amplified and then short - circuited E. coli's internal machinery
for producing large fatty - acid molecules, enabling them to convert
precursor molecules directly into fuels and other
chemicals.
(a) Toxic
chemicals and their
precursors, except where intended
for purposes not prohibited under this Convention, as long as the types and quantities are consistent with such purposes;