Mass spec on commercial BPC-157 — anyone done independent verification?

Sent a 5mg vial from a major vendor to a third party lab for MS confirmation. Came back at 1418.3 Da measured vs 1419.5 theoretical. Within tolerance.

HPLC main peak at 98.7%. Two minor peaks around 1.3% combined which is consistent with truncation byproducts you'd expect from a 15-residue synthesis.

Will name the vendor in a separate review post once I run a second lot.