| PTMO | Poly(tetramethylene oxide |
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| tetramethylene | <chemistry> A hypothetical hydrocarbon, C4H8, analogous to trimethylene, and regarded as the base of well-known series or derivatives. Sometimes, an isomeric radical used to designate certain compounds which are really related to butylene. Origin: Tetra- + methylene. Source: Websters Dictionary (01 Mar 1998) |
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| tetramethylenediamine |
putrescine.
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