This is BU600 from the latest April 2025 restock.
The BU600 Jano testing SSA did that tested at 650mg/ml was for the old stock. Oct 2024.
If you see their latest testing, they only posted May 2025 testing for BU300 and BU200 for the new restock which tested well. They did not post any testing for the BU600 restock which occured in April 2025. Either they did not test it or they knew something was off with it.
Either way, it looks like BU500 which is sold by the other CN UGL vendors.
The GCMS has issues and Jano will rerun it.