not the same compound. notice the first has "hydrochloride" after it? the first is DPT HCL, the second is DPT Freebase (FB)
probably I haven't understood how Cas numbers work. it seems like different forms of the same substance have different cas numbers. isn't it? or maybe DPT Hcl an DPT FB are actually different substance. I've got to freshen up my chemistry handbook: back to high school! P.S. : sorry for my poor poor english.
DPT HCL and DPT FB *are* two seperate substances. One is a salt, the other isn't. Luckily you can use either for psychedelia. FB is better for smoking, HCL better for all other routes of administration (usually).
dpt fb sounds fucking amazing. i'm going to basify some for my tree as soon as i'm able to procure some more