I’m gonna go out on a limb here, and posit that you also don’t know that CBD can be (and is being) converted into D8 or D9, and that much, if not most, of the distillate you have access to, is in fact a soup of unknowns.
Yes, there are cleanish examples out there, but if you purchased a liter for $800 the probability of you having clean (pesticide free) non-converted material are slim to none imo.
Eg: Delta 8 - Remediation of Unknowns
why? see Cat 3* D9 Pricing