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- This is a table of UN/NA numbers (United Nations and North American numbers) exceptions of hazardous materials. "UN/NA Datasheets | CAMEO Chemicals | NOAA"...3 KB (31 words) - 22:18, 20 October 2022
Elassovalene (2a,8b-dihydro-cyclopent[cd]azulene) is a polycyclic hydrocarbon with chemical formula C12H10, composed of one cycloheptatriene ring and two...1 KB (60 words) - 15:05, 19 May 2021
