Since a lot of people have trouble obtaining Singer grease, and there's talk of it being discontinued, I thought I'd email Singer and ask for the MSDS for it.
I told them that I work for a flooring company which uses sewing machines for carpet binding (which is true) and that I needed the MSDS sheets for our records (which was a white lie

).
I asked for the MSDS for the oil too while I was at it.
They emailed back just now, and attached the MSDS for the oil. Unfortunately, they don't have one for the grease!
Interestingly, the oil MSDS is actually for 'Albatross Crystal Clear Lily White Oil'.
I googled this, and it turns out that this is a sewing machine oil too.
I can't figure out how to attach the MSDS that Singer sent because I'm on my phone right now, but it differs in minor details from the one that Albatross themselves publish for their oil.
The Albatross version goes into more detail.
You can read the Albatross version here:
http://albatross-usa.com/msds/3020.pdf
The CAS# is 178603-64-0, which is just a basic mineral oil with no additives.
Interesting reading, but I'm disappointed that Singer don't have an MSDS for the grease.
If we had that, it would probably have meant that we could get the same product from a different source.
I was hoping to have a nice surprise for everyone, but I guess the grease will remain a mystery