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Is N-Hydroxysuccinimide vegetarian?

N-Hydroxysuccinimide

Vegetarian Vegetarian
Vegan Vegan

N-Hydroxysuccinimide (NHS) is a synthetic organic compound with the formula (CH2CO)2NOH, a white solid used as a reagent for preparing active esters in peptide synthesis and other chemical applications.

Also known as 2,5-Pyrrolidinedione, 1-hydroxy-
INCI name N-Hydroxysuccinimide
CAS number 6066-82-6
EC number 228-001-3
CosIng ID 57401
Last reviewed 4 July 2026

An ingredient is considered vegetarian if it avoids components derived from killing an animal.

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