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Tetraethylenepentamine (TEPA) is an organic compound and is in the class of chemicals known as ethyleneamines. It is a slightly viscous liquid and is not colorless but, like many amines, has a yellow color.
"Molecular Structure of 3,3-Diethylpentane (Tetraethylmethane) in the Gas Phase as Determined by Electron Diffraction and ab Initio Calculations". The Journal of Organic Chemistry . 64 (12): 4226– 4232.
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The molecular formula C 17 H 36 (molar mass: 240.27 g/mol, exact mass: 240.2817 u) may refer to: 3,3-Di-tert-butyl-2,2,4,4-tetramethylpentane; Heptadecane
2,2,4-Trimethylpentane, also known as isooctane or iso-octane, is an organic compound with the formula (CH 3) 3 CCH 2 CH(CH 3) 2.It is one of several isomers of octane (C 8 H 18).This particular isomer is the standard 100 point on the octane rating scale (the zero point is n-heptane).
Triethylenetetramine (TETA and trien), also known as trientine when used medically, is an organic compound with the formula [CH 2 NHCH 2 CH 2 NH 2] 2.The pure free base is a colorless oily liquid, but, like many amines, older samples assume a yellowish color due to impurities resulting from air oxidation.
Gomberg's classical organic synthesis shown below starts by reacting triphenylmethyl bromide 1 with phenylhydrazine 2 to the hydrazine 3. Oxidation with nitrous acid then produces the azo compound 4 from which on heating above the melting point, nitrogen gas evolves with formation of tetraphenylmethane 5.
Structure of natural rubber, exhibiting the characteristic methyl group on the alkene group The one terpene that has major applications is natural rubber (i.e., polyisoprene ). The possibility that other terpenes could be used as precursors to produce synthetic polymers has been investigated as an alternative to the use of petroleum-based ...