AssayIndex
Glossary

Terms beginning with F

5 of 238 glossary terms.

Fill weight
The gross mass of material in a vial as weighed. Not the peptide mass — it includes water, counter-ion and residual solvent.
Fibrillation
Ordered self-assembly into amyloid-like fibrils. Glucagon is the fastest fibrillator in this index; native amylin is why pramlintide exists.
see also Aggregate
Fmoc
Fluorenylmethyloxycarbonyl, the standard temporary amine protecting group in solid-phase synthesis. Residual Fmoc appears at +222.068 Da.
Forced degradation
Deliberately stressing a sample under acid, base, oxidative, thermal and photolytic conditions to prove the method can resolve degradants.
Freeze–thaw
Repeated freezing and thawing of a reconstituted solution. A common aggregation trigger and a standard forced-degradation stress.