1-octadecanoyl-2-hexadecanoyl-sn-glycero-3-phosphocholine + H2O <=> 2-hexadecanoyl-sn-glycero-3-phosphocholine + octadecanoate + H(+)
1-octadecanoyl-2-hexadecanoyl-sn-glycero-3-phosphocholine + h2o <=> 2-hexadecanoyl-sn-glycero-3-phosphocholine + octadecanoate + h(+)