l carnitine mpmd L-Carnitine 3000 Liquid L-Carnitine 3000 16.5oz Liquid –
Description
In total, 50 L of the diluted Matrigel gel was added to the upper chamber of the transwell, gently tilted to ensure even spreading, and incubated at 37 C for 4 h in a cell culture incubator

While this categorization is easy and logical it turns out it's not true

Sanz-Ortega, J., Vocke, C., Stratton, P., Linehan, W
In neutral pH ultrapure water this self-association can produce visible turbidity, particulate suspensions, or gels at higher concentrations
