This product was sold by Edward Phalon starting in the late 1850s.
Joseph Burnett, of Boston, invented his Cocoaine in 1856. Two years later the Phalons started marketing a product called Cocoine (View ad). Burnett won an injunction against the Phalons and notice of the same was printed in the 1860-61 Boston Directory. Apparently when the Phalons came out with the product, it not only sounded like Cocoaine, but the bottles were similar. I haven't seen this unusual Phalon's Cocoine bottle, but I'd sure love to get my hands on one. The bottle shown is for the product after they changed the name to Cocin. They probably changed the bottle as well. The latest I found the Cocin advertised was in 1867.
This bottle is the only one that I know contained Cocin. It originally had a label on it. It is very likely that some of the larger bottles embossed Phalon & Son - Perfumer's were also for this product.