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In organic chemistry, the phenyl group or phenyl ring is a cyclic group of atoms with the formula C6H5. Phenyl groups are closely related to benzene. Phenyl groups have six carbon atoms bonded together in a hexagonal planar ring, five of which are bonded to individual hydrogen atoms, with the remaining carbon bonded to a substituent.

ScienceDirect.com - Neuron - Direct Activation of the Olfactory Cyclic Nucleotide–Gated Channel through Modification of Sulfhydryl Groups by NO Compounds

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In group theory, a cyclic number is a positive integer such that every group with that number of elements must be cyclic. Learn more at expii.

Just because an animal looks fine don't mean they are fine. Neuropathic pain is different then physical pain. Join the fight against declawing, tail docking , and ear clipping today. Join groups and sign petitions. Here is mine for dclawing https://plus.google.com/u/0/communities/105353126946040990134

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