pfizer: Active Ingredient nucleoside-modified messenger RNA (modRNA) encoding the viral spike glycoprotein (S) of SARS-CoV-2 Lipids (4-hydroxybutyl)azanediyl)bis(hexane-6,1-diyl)bis (ALC-3015) (2- hexyldecanoate),2-[(polyethylene glycol)-2000]-N,N-ditetradecylacetamide (ALC-0159) 1,2-distearoyl-snglycero-3-phosphocholine (DPSC) cholesterol Salts potassium chloride monobasic potassium phosphate sodium chloride basic sodium phosphate dihydrate  Other sucrose