What Replaced the R5 & DeoxIT® DN5?

We use your products for avionics applications. Please let me know the product part number that directly replaces R5S-6. I noticed a D5S-6 and a DN5S-6N. Is the DN5S-6N a better product?
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The DeoxIT® DN5S-6N is the non-flammable version of the D5S-6. The DN5 also has instant evaporation, is non-drip and is safe on plastics.

The R5S-6 was a predecessor to the DN5S-6N, and had a more costly non-flammable carrier solvent.

The DeoxIT® DN5S-6 was replaced by the DeoxIT® DN5S-6N. All the above formulations are nonflammable, only the solvents are different.