Where could I find the structural formula for Olestra (marketed as "Olean")?
368607
You were close by looking at wikipedia. The image is a ball and stick but you could figure it out. The description says it is just fatty acids (usually alkyl C16-C18) chains attached by an ester bond to the hydroxyls of a sucrose molecule (8 fatty acids).
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www.soilandhealth.org/06clipfile/RCE/rceALL.html\nwww.rce.rutgers.edu/pubs/bearreport/experimental.asp\nwww.hc-sc.gc.ca/fn-an/alt_formats/hpfb-dgpsa/pdf/res-rech/reg_determination_sod_pot-reg_dosage_sod_pot_e.pdf
696102
A is 1,3-pentadiene, also called piperylene, CH2=CHCH=CHCH3. The sodio derivative is CH2=CHCH=CHCH2- Na+. This reacts with n-propyl iodide, CH3CH2CH2-I to give 1,3-octadiene, CH2=CHCH=CHCH2CH2CH2CH3, which is reducible by H2 on a Pt catalyst to give n-octane.\n\nA clue to A is the empirical formula, C5H8. This is of the type CnH2n-4. So A has two rings, twodouble bonds, or one ring and one double bond. The product is n-octane, with no rings, so A must have had two double bonds.
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a fat molecule triacylglycerol
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If you just google the name(s) of the active ingredient in the ointments you'll be able to find structures for them...
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http://www.cromaltda.cl/listadeproductos.html
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It's just another name for alkene.  Olefine is from Latin which means "oil forming gas" describes alkene well.  The link below have more information on alkene.
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Firstly find a picture of the structural formula of oestrogen (or see the link below).\nUsually this sort of model is made using balls of modelling clay for the atoms and cocktail sticks (toothpicks or similar) to represent the bonds.\nUse different colours for the different types of atom.\n\nNote - transporting it can be a nightmare so don't make too big! A shallow biscuit tin would be ideal.\nP.S. Note my UK spelling.
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ALUMINUM ACETATE BASIC \n\nFormula: Al2O(C2H3O2)4.H2O
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The formula in the above answer is incorrect since it omits the aromatic ring and the 9 subsequent repeating units (it's not 9 repeating -OH groups, that makes no sense).\n\nThe empirical formula by my calculations seems to be: C33 H60 O10
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http://chemistry.about.com/library/weekly/blsapon.htm\n\n\n\nSimple web search
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Key points to look for include:\n\nInfrared\n-NO2 bonds: 1515-1560, 1345-1385\nAlkenes: C-H: 3020-3080 (moderate), 675-1000\n         C=C: 1640-1680(variable) \nIf wet: Large OH hump in the 3500 area... should obliterate most other peaks in the area.\n\nI am not as up to scratch with NMR.\n\nThis is a common compound and an IR and NMR spectra should be easily found on the internet. I recommend chaecking them carefully as jus tlooking for the peaks above will probably not be highly useful.\n\nEven better than the internet is a resource book, any laboratory or university library should have such resource books.\n\nPersonally I recommend that if you are doing much organic chemistry to get 'Organic CHemistry' by Morrison R.T. and Boyd R.N., published by Prentice Hall.\nThis book has an excellent guide for spectra.
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I'm going off memory here so be sure to check this.  I think the formula is the same, but the structure may be different.  Just trying to point you in the right direction.
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http://en.wikipedia.org/wiki/Organic_chemistry
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http://www.in.pharma.novartis.com/
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http://www.fda.gov/bbs/topics/news/2006/NEW01298.html check this out it might be what you are looking for
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This site is a good resource for chemical structures and their properties.\nhttp://www.chemicalland21.com/\n\nSpecifically for Sodium erythorbate:\nhttp://www.chemicalland21.com/lifescience/foco/SODIUM%20ERYTHORBATE.htm