![(E)-1-(3-(三фтораметил)-5，6-二водорода-[1，2，4]三唑并[4，3-a]пиразин-7(8H)-基)-4-(2，4)，5-三фторафенил)бутил-2-ен-1-кетон(西格列汀примесь)](/static/images/products/1253056-18-6.webp)
(E)-1-(3-(三фтораметил)-5，6-二водорода-[1，2，4]三唑并[4，3-a]пиразин-7(8H)-基)-4-(2，4)，5-三фторафенил)бутил-2-ен-1-кетон(西格列汀примесь)
(E)-1-(3-(Trifluoromethyl)-5，6-dihydro-[1，2，4]triazolo[4，3-a]pyrazin-7(8H)-yl)-4-(2，4，5-trifluorophenyl)but-2-en-1-one(SitagliptinImpurity)
(E)-1-(3-(Trifluoromethyl)-5，6-dihydro-[1，2，4]triazolo[4，3-a]pyrazin-7(8H)-yl)-4-(2，4，5-trifluorophenyl)but-2-en-1-one(SitagliptinImpurity) 98%