you can check with drugsdata.org
it has nothing to do with Shulgins 2C-B. 'Tusi' or 'Pink' is a blend of Ketamine and MDMA, each cook has a different ratio they use for their blend. there is also non active cuts that are not showing up on test results but it has been reported flavouring, food dye (of course for its appearance) and vitamin B12
From busts in spain they are showing some of the equipment used, it looks like a simple process. There might be some guys on the forum that could guide you in this process but it mostly looks like a trial and error process in terms of ratios used.
here is some recent results of 'Tusi' on drugsdata.org
Code: AC2022C054
Sold as: X |
- MDMA
- Caffeine
- Ketamine
- Ketamine Precursor A
| | Sep 23, 2022
| Peoria, IL |
Tusi
Code: MDE2C
Sold as: Tusi |
- Ketamine
- Caffeine
- Ketamine Precursor A
- MDMA
| | Sep 21, 2022
| Online |
Pink Tuci
Code: Pink1
Sold as: Pink Tuci |
- MDMA
- Caffeine
- Ketamine
- Ketamine Precursor A
| | Jul 07, 2022
| Los Angeles, CA |
If you have access to a good batch of Pink you can buy off one of your sources, I would advise sending it off to Energycontrol in barcelona and the results will be able to give you a definitive result in ratios used which you can use as a model for creating your own batch.