I hope it's okay because that's what I'm using, too. My advice... a small bottle isn't going to last very long... you may want to get a larger one. If you plan to do the cleanse more than 10 days, you may want to look online for the Grade B stuff. From what I read in the book by Stanley Burroughs, alot of the time he was concerned with contaminated and processed ingredients as well as cost. Cost kept coming up again and again. He mentioned specifically that his program was designed to be very low cost and that Grade B and C syrup is less costly.
In all, I think you'll be fine as long as you have grade A syrup which is completely unprocessed... 100% natural. My local large food store (A Shoppers' Food Warehouse) carries Spring Tree (or Spring Hill or Spring Tree Hill or something) Grade A syrup. That's what I'm using- although I'm only using 1/2 to 1/3 the amount prescribed in the book.