(4Z,15Z)-bilirubin IXalpha C8-beta-D-glucuronoside + UDP-alpha-D-glucuronate = (4Z,15Z)-bilirubin IXalpha C8,C12-beta-D-bisglucuronoside + UDP
(4z,15z)-bilirubin ixalpha c8-beta-d-glucuronoside + udp-alpha-d-glucuronate = (4z,15z)-bilirubin ixalpha c8,c12-beta-d-bisglucuronoside + udp
(4Z,15Z)-bilirubin IXalpha C8-beta-D-glucuronoside + UDP-alpha-D-glucuronate = (4Z,15Z)-bilirubin IXalpha C8,C12-beta-D-bisglucuronoside + UDP
(4z,15z)-bilirubin ixalpha c8-beta-d-glucuronoside + udp-alpha-d-glucuronate = (4z,15z)-bilirubin ixalpha c8,c12-beta-d-bisglucuronoside + udp