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*Chlorofluorocarbons (CFCs): when derived from methane and ethane these compounds have the formulae CClF and CClF, where m is nonzero.
*Hydro-chlorofluorocarbons (HCFCs): when derived from methane and ethane these compounds have the formula CClFH and CClFH, where m, n, x, and y are nonzero.
* and bromofluorocarbons hav... | 0 | Greenhouse Gases |
Levonorgestrel is a progestogen; that is, an agonist of the progesterone receptor (PR), the main biological target of the progestogen sex hormone progesterone. It has effects similar to those of the hormone progesterone. As a contraceptive, it works primarily by preventing ovulation and closing off the cervix to preven... | 1 | Enantiopure drugs |
Being a good solvent for many materials (such as grease and tar), carbon tetrachloride was widely used as a cleaning fluid for nearly 70 years. It is nonflammable and nonexplosive and did not leave any odour on the cleaned material, unlike gasoline, which was also used for cleaning at the time. It was used as a "safe" ... | 0 | Greenhouse Gases |
Over-the-counter preparations containing dextromethorphan have been used in manners inconsistent with their labeling, often as a recreational drug. At doses much higher than medically recommended, dextromethorphan and its major metabolite, dextrorphan, acts as an NMDA receptor antagonist, which produces dissociative ha... | 1 | Enantiopure drugs |
The behavior of the chiral twins depends mainly on the nature of the environment (achiral/chiral) in which they are present. An achiral environment does not differentiate the molecular twins whereas a chiral environment does distinguish the left-handed version from the right-handed version. Human body, a classic bio-en... | 1 | Enantiopure drugs |
Amoxicillin is recommended by the World Health Organization for the treatment of infants with signs and symptoms of pneumonia in resource-limited situations when the parents are unable or unwilling to accept hospitalization of the child. Amoxicillin in combination with gentamicin is recommended for the treatment of inf... | 1 | Enantiopure drugs |
Ampicillin is well-absorbed from the GI tract (though food reduces its absorption), and reaches peak concentrations in one to two hours. The bioavailability is around 62% for parenteral routes. Unlike other penicillins, which usually bind 60–90% to plasma proteins, ampicillin binds to only 15–20%.
Ampicillin is distrib... | 1 | Enantiopure drugs |
Cefalexin is a β-lactam antibiotic of the cephalosporin family. It is bactericidal and acts by inhibiting synthesis of the peptidoglycan layer of the bacterial cell wall. As cefalexin closely resembles d-alanyl-d-alanine, an amino acid ending on the peptidoglycan layer of the cell wall, it is able to irreversibly bind... | 1 | Enantiopure drugs |
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