L-Carnosine; H-β-Ala-His-OH; N-β-Alanyl-L-histidine MOLECULAR BIOLOGY GRADE L-Carnosine is a white to slightly off-white crystalline powder that is used as a substrate for carnosinase-1 and other enzymes. Merck Index 13,1863 Store at 2-8°C. Features CAS#: …