label: 1-octadecanoyl-2-nonanoyl-sn-glycero-3-phosphocholine + H2O <=> nonanoate + 1-octadecanoyl-sn-glycero-3-phosphocholine + H(+)
label_lc: 1-octadecanoyl-2-nonanoyl-sn-glycero-3-phosphocholine + h2o <=> nonanoate + 1-octadecanoyl-sn-glycero-3-phosphocholine + h(+)