Genetron® 507 (an azeotrope of HFC-125 and HFC-143a) has been
developed by Honeywell to serve as a long-term substitute for the
refrigerant Genetron® 502. Genetron® 507 is an environmentally
friendlier, non-ozone depleting azeotrope, and is an excellent
refrigerant choice for low- and medium-temperature refrigeration
applications