Dilantin molecular weight?

What is Dilantin (phenytoin) and what molecular weight does it have?

Dilantin is the brand name for phenytoin. The molecular weight of phenytoin (free base) is about 252.27 g/mol.

Does the molecular weight change for different Dilantin forms?

Different salt forms of phenytoin can have slightly different molecular weights (because the counter-ion changes). If you tell me which exact product or label you’re looking at (for example, phenytoin sodium vs. phenytoin base), I can give the corresponding molecular weight for that specific form.