I ran the same numbers and got the same result. I'd try one shot and see what happens. The per-hour part confuses me though does that mean the amount stays in your blood every hour or just how much you take in each hour. There's information out there on endotoxins but I can't find it right now.
I'm in an independent test group and one vial from a recent batch came back with around 78 units of endotoxins. That's higher than earlier tests and seems to be climbing. The vial tested at about 69 milligrams of the peptide so roughly 1.13 units per milligram. At a 17 milligram dose that works out to about 19 units per injection. The limit is 5 units per kilogram of body weight per hour so at 110 kilograms the body could handle 550 units hourly. Nineteen units looks tolerable though higher than I'd prefer. I may start with smaller doses from this batch mixed with another supply to reach the full amount and switch batches before finishing it.