label: an N-acetyl-alpha-neuraminyl-(2->8)-N-acetyl-alpha-neuraminyl-(2->3)-beta-D-galactosyl derivative + CMP + H(+) => an N-acetyl-alpha-neuraminyl-(2->3)-beta-D-galactosyl derivative + CMP-N-acetyl-beta-neuraminate
label_lc: an n-acetyl-alpha-neuraminyl-(2->8)-n-acetyl-alpha-neuraminyl-(2->3)-beta-d-galactosyl derivative + cmp + h(+) => an n-acetyl-alpha-neuraminyl-(2->3)-beta-d-galactosyl derivative + cmp-n-acetyl-beta-neuraminate