I have musk fragrance formulator from Wholesale supplies plus, I believe now they just call it Musk fragrance oil. I think there are other notes, if you read the supplier description that might give you a clue.
Also you may want to consider the type of Musk you like before you purchase one over the other they can vary in it's scent's, in that some having a soft scent w/ hints of a slight floral musky scent, then musk that can be a pungent strong animalistic musk & musk w/ both in between.