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Allantoin
C4H6N4O3 158.12
 Urea, (2,5-dioxo-4-imidazolidinyl)-;
 Allantoin [97-59-6]

DEFINITION

Allantoin contains NLT 98.5% and NMT 101.0% of C4H6N4O3.

USP REFERENCE STANDARDS FOR PURCHASE

USP Allantoin RS
USP Urea RS
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