Chesterfield is rebranded Diamine. Somewhere in FPN is an Excel file showing the correlations between the Chesterfield and Diamine names. One I remember off the top of my head is Chesterfield Mahagony is Diamine Saddle Brown.
ETA: Here's the link to the spreadsheet, in Google Docs:
https://docs.google.com/spreadsheet/ccc?key=0AnAYbNbmymGjdDFuOGVNaU5zZThva3ZwSy16amVpe Gc&hl=en[/url#gid=0
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