B5, B05, B-5 may refer to:
==Biology== ATC code B05 (Blood substitutes and perfusion solutions), a therapeutic subgroup of the Anatomical Therapeutic Chemical Classification System Cytochrome b5, ubiquitous electron transport hemoproteins Cytochrome b5, type A, a human microsomal cytochrome b5 HLA-B5, an HLA-B serotype Pantothenic acid (a.k.a. vitamin B5), a water-soluble vitamin Procyanidin B5, a B type proanthocyanidin
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).