Global Diamantane Market By Type (Purity above 98%, Purity below 98%, , and Purity above 98% Diamantane had a market share of 82% in 2018.), By Application (Chemical Reagent, Fine Chemicals, Pharmaceutical Intermediate, and Material Intermediate), By Region, and Key Companies - Industry Segment Outlook, Market Assessment, Competition Scenario, Trends and Forecast 2020-2029