Is this the same sodium bromide available on Amazon??
Wow, can’t believe the encouragement from this post - just managed to sell another 2.. this is crazy! Have just dropped the price as a thank you for the support https://www.amazon.com/XANAX-CANDLE-FOR-PILL-LOVERS/dp/B0B3LD9P1K
I can recommend a good Calculus book. I know it's not what you're asking for but I bought it for the same reason you want the chemistry book. I learned from calculus to differential equations in college and I don't remember much but I wanted to relearn the basics. It was a bestseller when it came out in 2007.
The Calculus Lifesaver: All the Tools you Need to Excel at Calculus
There isn't a corresponding chemistry book, but I'm sure the folks at r/chemistryhelp will have some suggestions.
You're not wrong for conflating the two substances, because they are certainly linked. In addition to ConnorGoFuckYourself's explanation below, if you are interesting in this subject, check out the book The Case of the Frozen Addicts which is a great read and explains the whole MPTP situation by the Doctor who uncovered it. There was a bad batch of "heroin" going around Northern California in the early 80's which caused Parkinson's like symptoms within a matter of days. To the point where addicts would literally freeze trying to hop a fence on the getaway of a caper, and police had to pluck his/her frozen body off the fence and place it in the back of a cop car.
He (meaning Doctor J.W. Langston) succeeded in tracing the cause of this mysterious set of happenings to a bad batch of synthetic [MPPP](Desmethylprodine), a Demerol analog, which had rearranged to MPTP and caused all the issues. It's a great read. Aside from the obvious human tragedy, MPTP has proven invaluable in Parkinson's research, because before that there was no good animal model to mimic the disease.