The Difference Between L-5-Methyltetrahydrofolate And L-5-Methyltetrahydrofolate Calcium
- Jan 10, 2018 -

L-5-Methyltetrahydrofolate is CAS NO.31690-09-2

L-5-Methyltetrahydrofolate Calcium is CAS NO. 151533-22-1


Both they can be used in dietary supplement. 

But L-5-Methyltetrahydrofolate can't be directly absorbed, this is why people make it into Calcium salt for easier absorbtion.