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Insulin Family intermediate

Faster-Acting Insulin Aspart

Next-generation rapid-acting insulin aspart formulation with niacinamide and L-arginine for accelerated initial absorption.

By Encyclopeptide Editorial | 1 min read
insulin aspart rapid-acting diabetes faster-acting

Chemical Identity

PropertyValue
Chemical FormulaC256H383N65O79S6
Molecular Weight5825.66 g/mol
CAS Number908752-57-4
Peptide ClassUltra-Rapid Insulin Analog

Structure

Faster-acting insulin aspart (Fiasp) contains the same aspart molecule but includes niacinamide (vitamin B3) and L-arginine as excipients. Niacinamide promotes local vasodilation at the injection site, accelerating initial absorption.

Clinical Applications

Approved for type 1 and type 2 diabetes. Provides faster onset than standard aspart, allowing dosing at meal start rather than 15-20 minutes before.

Pharmacokinetics

  • Onset: ~2.5 minutes
  • Peak: ~35 minutes
  • Duration: 3-5 hours

Biological Significance

This molecule plays important roles in biological systems and has potential therapeutic applications.

References

  1. Encyclopeptide Database. “Faster-Acting Insulin Aspart” monograph. encyclopeptide.com.

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