The most important application of diazo coupling reactions is electrophilic aromatic substitution of activated benzene derivatives by diazonium electrophiles. The products of such reactions are highly colored aromatic azo compounds that find use as synthetic dyestuffs, commonly referred to as azo dyes.
The biggest IT vendors in the world by revenue. Research and advisory company, Gartner, has published the top global 100 vendors in IT in 2016 based on their revenue across IT and component market segments. Apple is listed as the largest vendor with more than $218 billion in IT revenue â approximately $79 billion larger than second placed Samsung Vendor Group, while Google is third.
Retailers are vendors of products to consumers. In information technology as well as in other industries, the term is commonly applied to suppliers of goods and services to other companies. A tier 1 vendor is a large and well-known vendor, often enjoying national or international recognition and acceptance.Tier 1 vendors may be both manufacturers and value-added resellers (VAR s). A tier 2 vendor is a smaller and less well-known provider that is often also limited in its geographic coverage as well.n information technology as well as in other industries, the term is commonly applied to suppliers of goods and services to other companies. A tier 1 vendor is a large and well-known vendor, often enjoying national or international recognition and acceptance.