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Pfanstiehl

Waukegan, IL · United States

Excipients & Raw Materialsmid

Specialization: High-purity injectable-grade excipients

Key Differentiator

Makes low-endotoxin, low-metal GMP excipients such as sucrose and trehalose for biologics and vaccines.

Core Services

Carbohydrate excipients; Amino acid excipients; Buffer components; Custom API manufacturing; ADC linker manufacturing

Capabilities

Sucrose and trehalose excipientsAmino acids such as arginine and histidineTris and succinate buffersHigh potency API manufacturingDMF support

Market Intelligence

Founded in 1919 and based in Waukegan, IL. In July 2026 it announced the purchase of Nestle's Wyeth site in Askeaton, Ireland, its second global site.

Website

pfanstiehl.com

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