The CAS they reference is for alpha-methylsynephrine, otherwise known as Oxilofrine.
Oxilofrine is also pictured on the bottle.
Oxilofrine has a good oral bioavailability , decent half-life, good tolerability up to 120 mg +, and decently strong beta-adrenergic agonism .
The only question is whether or not oxilofrine is actually contained within the product. To my knowledge, oxilofrine does not exist naturally within the food supply. The "methylsynephrine" which is found in various cactii is "beta-O-methylsynephrine," otherwise known as beta-methoxy-synephrine. It should have little to no activity.