You know but any of the commercial moly's will work. It's not like we're all road racers. What is important is to grease the splines every time the rear wheel comes off and, like any other required service, the final drive will be fine.
Mucho years ago I bought my first BMW, a 1976 R90/6 from a military exchange British fighter pilot in Norfolk, VA . When I inspected the splines about six months later, they were near dry. Not knowing any better I used a copious amount of wheel bearing grease, which is what they used "back in the day" and it worked just fine. Later when I learned about moly I switched. Keep it greasy and all will be fine.