Explanatory notes
… 10 H 8 ), solid. This heading does not , however, include synthetic carotenes which fall in heading 32.04 . (B) … rich in carbon (coal, lignite, etc.); also obtained synthetically. In the pure state, it is a colourless, … mainly in the preparation of plastics (polystyrene) and of synthetic rubber. (2) Ethylbenzene (C 6 H 5 C 2 H 5 …