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What is a Molecule?

A molecule is the smallest particle of an element or compound that retains the chemical characteristics of the element or compound. A chemical compound consists of molecules composed of the same atoms in the same configuration.
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Where can I find a gif of the caffeine molecule?

Frequently Asked Questions about Caffeine
The Department of Chemistry at Jamaica of the University of Western Indies has made available an avi and an mpeg of a rotation of the caffeine molecule, among other molecules and chemical processes. The index page contains more information and the links to the clips. CH3 | N / \ N----C C==O || || | || || | CH C N--CH3 \ / \ / N C | || CH3 O There is a gif picture at the wuarchive.wustl.
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news.answers/caffeine-faq
A different view of the caffeine molecule. The Department of Chemistry at Jamaica of the University of Western Indies has made available an avi and an mpeg of a rotation of the caffeine molecule, among other molecules and chemical processes. The index page contains more information and the links to the clips. CH3 | N / \ N----C C==O || || | || || | CH C N--CH3 \ / \ / N C | || CH3 O There is a gif picture at the wuarchive.wustl.
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How is a water molecule built up?

Water chemistry FAQ
A water molecule consists of three atoms; an oxygen atom and two hydrogen atoms, which are bond together like little magnets. The atoms consist of matter that has a nucleus in the centre. The difference between atoms is expressed by atomic numbers. The atomic number of an atom depends on the number of protons in the nucleus of the atom. Protons are small positively charged particles. Hydrogen has one proton in the nucleus and oxygen has eight.
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How is it possible that this particular molecule has so many diverse healing properties?

Freqently Asked Questions - FAQ-AMP Floracel - Original Molo...
Answer: There are about 500 published independent research studies prepared by scientists and doctors on the miraculous healing agent found in the Aloe Vera Plant. This is far more studies than one would find on the safety and effectiveness of any drug or other natural substance available. The only accurate explanatory answer is that God created this healing molecule (A.M.P.
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How much does a water molecule weigh?

Water chemistry FAQ
The weight of a molecule is determined by the atomic masses of the atoms that it is built of. The atomic mass of an atom is determined by the addition of the number of protons and neutrons in the nucleus, because the electrons hardly weigh anything. When the atomic masses of the separate atoms are known, one simply has to add them up to find the total atomic mass of a molecule, expressed in grams per mol.
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I want to optimize the structure of my molecule. What should I try first?

NWChem Frequently Asked Questions
The optimizer of first choice should be the default option of user-specified Cartesian coordinates and DRIVER using redundant internal coordinates (AUTOZ - automatic Z-matrix). The example input optimizes the structure of H3C-COOH using 3-21g SCF. geometry c -0.017 -0.030 -0.077 c -0.017 -0.030 1.422 h 0.922 -0.030 1.764 h -0.487 0.783 1.764 h -0.487 -0.844 1.764 o -0.580 -1.005 -0.727 o 0.545 0.944 -0.727 h 0.545 0.944 -1.
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How fast can SystematiChem? process a molecule?

SysChem - Frequently Asked Questions
Currently, SysChem can process a molecule in fewer than 24 hours and have the full detailed results ready for shipping to the customer within 7 business days.
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Why is a molecule not animated when I move the mouse cursor over the molecule?

Elsevier MDL :: Support :: Knowledge Base :: FAQs ::
If you right-click on a structure that is rendered by Chime, you should see the options displayed in the following screenshot: When the structure file reference is put on the web page, the default settings for display can be specified. On the Nova pages http://www.pbs.org/wgbh/nova/diamond/insidediamond.html, for example, the molecules rotate by default. To make a molecule rotate, right-click on it and select Rotation.
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Why does my Target molecule change?

The Rothberg Institute: Software Support: FAQ
The agent will switch between targets depending on what the tasks that it downloads require. Each time the agent retrieves tasks, it will swap the target rendering to reflect any changes in target focus. No, if you stop a run before you have completed all the conformers for a candidate, the docking will be aborted. The genetic algorithm that creates the conformers is such that each new conformer depends on the prior one and a random seed.
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How many conformations does each molecule go through?

About smallpox
Each molecule is different, and the number of conformations differs molecule to molecule. Some molecules may be more complex, or have more flexibility, and thus will have more conformations.
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Can Omega enumerate all the stereoisomers of an input molecule?

OpenEye Scientific Software | FAQ
Omega cannot by itself permute the stereo configurations of an input molecule. The recommended approach is to enumerate the desired stereoisomers prior to the Omega run. Omega will infer R/S from the 2D SD file if possible, and stick with that configuration. Included with Omega is an auxilliary program "flipper" which can enumerate stereoisomers for such a purpose. In addition, OEChem includes source code examples for enumerating stereoisomers which can be customized.
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What determines the retention or hydrophobicity of a molecule in HPLC?

MicroSolv Technology Corporation
Much of the retention of a column in Reverse Phase chromatography is due to what is commonly called hydrophobicity. This natural phenomena is due mostly to the size of the hydrophobic (water resistant) area of a molecule. Retention will increase with the amount of water in the mobile phase. In general, the more hydrophobic the molecule (see Octanol/Water Partition Coefficient) the longer it should be retained.
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How much time does it take to run an AOMix-CDA calculation for a molecule containing 50 atoms?

AOMix. SWizard. FAQ
Approximately 5 minutes on any modern destop or laptop computer. All CPU-intensive modules of AOMix are written in Fortran for fast execution. Here are a few examples (using a laptop computer with a Pentium IV mobile 1.7 GHz processor, 256MB RAM and MS Windows XP as an operating system): a AOMix-CDA spin-unrestricted calculation on a molecule with 46 atoms and 393 orbitals takes 3 minutes; a AOMix-CDA spin-unrestricted calculation on a molecule with 71 atoms and 978 orbitals takes 20 minutes.
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What is the difference between the high- and low-level molecule file writers?

OpenEye Scientific Software | FAQ
There is an important functional difference between high-level molecule writing method OEWriteMolecule() (or equivalently, the overloaded << operator in C++) and the low-level format-specific writers such as OEWriteMDLFile(). With the high-level writers, OEChem takes responsibility for normalizing the state of the molecule to correspond with the output format.
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So you use Real Hoodia Gordonii Powder but how much of the active molecule in P57 is present?

Frequently Asked Questions
Check out the P57 lab analysis results on the manufactures website CLICK HERE then click on Certification (top & center) We cannot make any claims as to the efficacy of Hoodia Gordonii, only that we strive to offer you the best source material currently available. Each person has a different metabolism and we recommend you start by ordering one bottle to see if you experience positive effects. If you do then come back and take advantage of our discount on quantity pricing.
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Can my molecule files be transferred between PC and Mac versions of Vector NTI?

UNC Shared BioInformatics Resource - Vector NTI Faq
Yes. Any molecule in your Database can be transferred between PC/Mac versions and/or static/dynamic versions of Vector NTI. Place the files into a subset (sub-base for Macs) in your Explorer Database. Archive the subset by clicking once on the subset then opening the Table dropdown menu and going to Export>Subset into archive. This archive can then be placed into the Explorer Database of a separate copy of Vector NTI by dragging.
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Are there plans to decrease the time needed to process a molecule?

SysChem - Frequently Asked Questions
SysChem plans to acquire faster computers and is improving its software to reduce both processing and turn-around times for a molecule. SystematiChem?, SysChem's revolutionary processing system, is constantly being upgraded.
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top ] Can FlexS accept a template molecule which is really a collection of superimposed molecules?

BioSolveIT GmbH - FlexS - faq
This can be done with FlexS, but our solution is not working on multi-mol2 files for the following reason: Our superpositioning algorithm needs a connected molecule graph. At the moment we can't handle disconnected components. But what you can already do (since FlexS v1.7), is to merge the gaussian representations of several pairwise alignments. So you get the molecule graph of one reference structure enriched with the gaussians of some alignments. You can download a script.
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How do I read in a small molecule from ISIS draw and convert it to 3D?

ICM User's Guide: FAQ-Cheminformatics
NOTE: There is no need to use an external chemistry drawing software when you can use the ICM molecular editor which is fully integrated into the ICM software.
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I have tested a molecule and MCASE tells me it contains an unknown fragment. What does that mean?

FAQ
unknown fragment is one that does not exist in any molecule in the database. If you test a chemical that contains an unknown fragment, MCASE has no basis for deciding whether the fragment might cause biological activity. If you are testing a large and structurally diverse library of chemicals, then the database must be correspondingly diverse. Otherwise, most of the tests will be inconclusive due to presence of unknown fragments.
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What is The Importance Of PABA/DEAE Combined In The Procaine Molecule as GH3?

Gerovital Direct : Gerovita - Gerovita - Gerovita - Gerovita
DEAE contributes to the synthesis of choline, praised for its anti-ageing effects upon the brain, creating a mild sense of euphoria. PABA/DEAE, (Procaine:hcc) formulated into GH3 Gold however, is protected against the enzyme cholinesterase. This allows the slow release of PABA/DEAE throughout the body. Scientific studies have shown PABA/DEAE, combined in this manner, possess a unique ability to reach individual cells and feed them beneficially.
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Why do some Shared_Object_pathways do not have any molecule, enzyme and reactions?

DOQCS database
It is because some of the pathway do not use any of the shared objects molecule or enzyme or reaction.
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How can I access the 3D coordinate of a specific 3D molecule view?

Molecular Conceptor - FAQ
Our data is not accessible. If you need a specific 3D molecule view, please contact us and specify your needs. This error occur if the application file mc2.exe was activated not from its installation directory. (the default place is - "C:\Program Files\Synergix\mc2\mc2.exe") One can use a shortcut to activate mc2.exe, but must ensure that this is a shortcut to the file, and not a copy of the file.
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Will my molecule use the Systematic or Monte-Carlo method?

Conformational Analysis Overview
The number of cycles a molecule will take depends on the type and number of rotatable bonds. Each rotatable bond has a fold number. (This fold number can be modified in the 'Set Torsions' mode.) For example SP3-SP3 bonds have a default fold number of 3 because these bonds usually have 3 minima 120 degrees apart. For systematic methods the number cycles is the product of all the fold numbers. For Monte-Carlo methods the default number of cycles is the square of the sum of all folds.
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The result does not contain the mass of my molecule but a bunch of unknown peaks. What are they?

Frequently Asked Questions
If you do not know what they are, we don't know, either. Other than the background peaks that we usually label them out for you, the peaks just indicate the things existing in your sample. Only judge from the masses, it is impossible to tell what they are. Please also note that we are not responsible to interpret the data any further than answering yes/no to whether your expected mass exists. In fact, by only look at the molecular ions, nobody would be able to answer any further question.
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How closely does the BeneFIX molecule resemble factor IX purified from human plasma?

Information on BeneFIX? Coagulation Factor IX (Recombinant) ...
Many state-of-the-art biochemical and biophysical techniques have been used to compare BeneFIX to factor IX derived from human plasma. These analyses indicate that the primary amino acid sequence is identical to the Ala-148 allelic form of plasma-derived factor IX.14 In addition, the structure and function of BeneFIX were found to be similar to the plasma-derived molecule.14 Back to Top
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