BACKROUND INFORMATION Organic chemistry is the study of hydrocarbons and their various deviations. (Ex. natural gas‚ paper‚ proteins‚ carbohydrates) Saturated hydrocarbons are hydrocarbons with carbon-carbon single bonds. (Ex. C-C) Unsaturated hydrocarbons are hydrocarbons with one of more multiple carbon-carbon bonds. (Ex. C=C double bond‚ triple bond‚ or both) Stereoisomers have the same molecular and structural formulas but different orientations of atoms in space. Constitutional isomers
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with a similar structured aromatic amine. Finally‚ the chemicals set the dye to make the color change permanent until the dyed hair is shed in the normal cycling of hair growth. Common chemicals in these products include hydrogen peroxide which is known to be a bleaching agent and ammonia which makes the fibers in the hair swell for better acceptance of the dye. These two chemicals are crucial to permanent hair dye because of their functions
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Quiz #1 Attempt 1 Written: Jul 7‚ 2012 9:48 AM - Jul 7‚ 2012 9:50 AM Submission View Your quiz has been submitted successfully. Question 1 1 / 1 point At what time do you have to complete your online prelab assignment to be allowed to participate in the lab? Question options: A week before the lab Day before the lab at 10 pm The morning of lab day at 8 am One hour before the lab Question 2 1 / 1 point Which materials/chemicals belong in the desiccator? Question options: Drying
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chitosan and its derivatives has inspired the investigators to use them as promising non-viral gene vectors because of their less cytotoxicity‚ and immunogenicity‚ non-mutagenesis response in comparison with the viral vectors‚ polyarginine and polyethylene imine (PEI). As well as‚ their ability in the formation of stable
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order to carry out this test the following procedures must be carried out including agitating the carbonyl compound within 0.5cm3 of methanol and then adding 3cm3 of dinitrophenylhydrazine. These tests were carried out on butanol‚ butanone‚ unknown a and unknown b which could all be concluded as positives tests given the large amount of yellow to red that formed. This test is therefore one of reliability as it indicates immediately whether aldehydes and ketones are
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Naphthalimide derivatives are classified under intercalators‚ having a flat aromatic or heteroaromatic moiety and basic side chains. Amonafide is one of the most widely studied naphthalimides‚ which binds DNA by intercalation and also as Topoisomerase II inhibitors. The napthalimides showed excellent activity in breast cancer trials but failed in phase III trials due to its side effects and bone marrow toxicity [54]. The justly Naphtalene diimide (NDI) scaffold achieved recently as intercalators
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main peaks of frequency for the unknown substance are approximately located at 3300 cm-1‚ 2950 cm-1‚ 2800 cm-1‚ 1650 cm-1‚ and 1525 cm-1. Each specific peak of frequency corresponds to a certain bond. The make up of nylon consists of carbon-oxygen bonds‚ carbon-hydrogen bonds‚ and nitrogen-hydrogen bonds. For example‚ 3300 cm-1‚ 29580cm-1‚ and 2800
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According to their chemical structure * Acylic structure This type of anti biotic comprise cyclopentane‚ cyclohexane‚ Cycloheptane derivatives. Eg. Sarcomycin‚ Thujic acid * Tetracyclic This group includes compounds similar in their structure. Eg.tetracycline * Aromatic antibiotics Antibiotics included in this group are benzene derivatives. E.g. Gallic acid Properties of antibiotics * It has few or no side effect in humans. * It kills different types of harmful bacteria
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References: Schotten-Baumann reaction ~ Name-Reaction.com. (n.d.). Retrieved March 11‚ 2014‚ from http://www.name-reaction.com/schotten-baumann-reaction Drugs from group of esters and amides aromatic carboxylic acids‚derivatives of p-aminophenol. (n.d.). Retrieved March 11‚ 2014‚ from http://intranet.tdmu.edu.ua/data/kafedra/internal/pharma_2/classes_stud/en/pharm/prov_pharm/ptn/pharmaceutical%20chemistry/3%20course/12%20Pharm.analysis%20of%20esters%20and%20amides%20of
Free Chemical reaction Base Alcohol
Several naturally occurring penicillins have now been isolated‚ and numerous derivatives of these substances have been synthetically produced. All have structures containing a four-membered β-lactam ring (4 membered cyclic amide) fused with a five-membered thiozolidine ring. The carbon atom of the amide on the β-lactam ring can be bonded to any substituent‚ called the ’R-group’. Penicillins as well as cephalosporins are called beta-lactam antibiotics and are characterized by three fundamental structural
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