Sitagliptin impurity B is also known as Defluoro Sitagliptin, an impurity of Sitagliptan, an dipeptidyl peptidase-4 (DPP-4) inhibitor for treatment of diabetes mellitus type 2. Reference standards of Sitagliptin API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.
stdClass Object ( [pname] => (R)-3-Amino-4-(2-chlorophenyl)-1-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)butan-1-one [catalogue_number] => PA 19 0481063 [category_ids] => ,75,76,78,70,82, [chemical_name] => [weight] => 387.79 [form] => C16H17ClF3N5O [cas] => 945261-56-3 [pslug] => 945261-56-3-r-3-amino-4-2-chlorophenyl-1-3-trifluoromethyl-5-6-dihydro-1-2-4-triazolo-4-3-a-pyrazin-7-8h-yl-butan-1-one-pa190481063 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PA 19 0481063
CAS :
Molecular Formula : C16H17ClF3N5O
Molecular Weight : 387.79
stdClass Object ( [pname] => (R)-3-Amino-4-(2,4-dichlorophenyl)-1-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)butan-1-one [catalogue_number] => PA 19 0481064 [category_ids] => ,75,76,78,70,82, [chemical_name] => [weight] => 422.23 [form] => C16H16Cl2F3N5O [cas] => 945261-60-9 [pslug] => 945261-60-9-r-3-amino-4-2-4-dichlorophenyl-1-3-trifluoromethyl-5-6-dihydro-1-2-4-triazolo-4-3-a-pyrazin-7-8h-yl-butan-1-one-pa190481064 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PA 19 0481064
Molecular Formula : C16H16Cl2F3N5O
Molecular Weight : 422.23
stdClass Object ( [pname] => Dimethyl ((R)-4-oxo-4-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-1-(2,4,5-trifluorophenyl)butan-2-yl)aspartate [catalogue_number] => PAI 19 009021 [category_ids] => ,70, [chemical_name] => [weight] => 551.45 [form] => C22H23F6N5O [cas] => NA [pslug] => dimethyl-r-4-oxo-4-3-trifluoromethyl-5-6-dihydro-1-2-4-triazolo-4-3-a-pyrazin-7-8h-yl-1-2-4-5-trifluorophenyl-butan-2-yl-aspartate-pai19009021 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PAI 19 009021
Molecular Formula : C22H23F6N5O
Molecular Weight : 551.45
stdClass Object ( [pname] => Dimethyl Bromosuccinate [catalogue_number] => PAI 19 009022 [category_ids] => ,70, [chemical_name] => [weight] => 225.04 [form] => C6H9BrO4 [cas] => 760-90-7 [pslug] => 760-90-7-dimethyl-bromosuccinate-pai19009022 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PAI 19 009022
Molecular Formula : C6H9BrO4
Molecular Weight : 225.04
stdClass Object ( [pname] => 3-Nitroso-1-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-4-(2,4,5-trifluorophenyl)butan-1-one [catalogue_number] => PA 19 0481072 [category_ids] => ,69,70,78,82,162, [chemical_name] => [weight] => 421.3 [form] => C16H13F6N5O2 [cas] => NA [pslug] => 3-nitroso-1-3-trifluoromethyl-5-6-dihydro-1-2-4-triazolo-4-3-a-pyrazin-7-8h-yl-4-2-4-5-trifluorophenyl-butan-1-one-pa190481072 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PA 19 0481072
Molecular Formula : C16H13F6N5O2
Molecular Weight : 421.3
stdClass Object ( [pname] => (R)-3-Amino-4-(2,4,5-trifluorophenyl)butanamide [catalogue_number] => PA 19 0481073 [category_ids] => ,75,78,70,82, [chemical_name] => [weight] => 232.21 [form] => C10H11F3N2O [cas] => 2137101-64-3 [pslug] => 2137101-64-3-r-3-amino-4-2-4-5-trifluorophenyl-butanamide-pa190481073 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PA 19 0481073
Molecular Formula : C10H11F3N2O
Molecular Weight : 232.21
stdClass Object ( [pname] => Isopropyl (R)-3-amino-4-(2,4,5-trifluorophenyl)butanoate [catalogue_number] => PA 19 0481074 [category_ids] => ,75,78,70,82, [chemical_name] => [weight] => 275.27 [form] => C13H16F3NO2 [cas] => 1802495-69-7 [pslug] => 1802495-69-7-isopropyl-r-3-amino-4-2-4-5-trifluorophenyl-butanoate-pa190481074 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PA 19 0481074
Molecular Formula : C13H16F3NO2
Molecular Weight : 275.27
stdClass Object ( [pname] => 3-Amino-4-(3,4-difluorophenyl)-1-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)butan-1-one [catalogue_number] => PA 19 0481075 [category_ids] => ,70,78,82, [chemical_name] => [weight] => 389.33 [form] => C16H16F5N5O [cas] => 1334244-24-4 [pslug] => 1334244-24-4-3-amino-4-3-4-difluorophenyl-1-3-trifluoromethyl-5-6-dihydro-1-2-4-triazolo-4-3-a-pyrazin-7-8h-yl-butan-1-one-pa190481075 [latest_product] => 0 [linkproducts] => 1 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PA 19 0481075
Molecular Formula : C16H16F5N5O
Molecular Weight : 389.33
stdClass Object ( [pname] => 3-(Dimethylamino)-1-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-4-(2,4,5-trifluorophenyl)butan-1-one [catalogue_number] => PAI 19 009023 [category_ids] => ,70, [chemical_name] => [weight] => 435.37 [form] => C18H19F6N5O [cas] => 2762634-30-8 [pslug] => 2762634-30-8-3-dimethylamino-1-3-trifluoromethyl-5-6-dihydro-1-2-4-triazolo-4-3-a-pyrazin-7-8h-yl-4-2-4-5-trifluorophenyl-butan-1-one-pai19009023 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PAI 19 009023
Molecular Formula : C18H19F6N5O
Molecular Weight : 435.37
stdClass Object ( [pname] => Methyl 3-((tert-butylsulfinyl)amino)-4-(2,4,5-trifluorophenyl)butanoate [catalogue_number] => PAI 19 009024 [category_ids] => ,70, [chemical_name] => [weight] => 351.38 [form] => C15H20F3NO3S [cas] => NA [pslug] => methyl-3-tert-butylsulfinyl-amino-4-2-4-5-trifluorophenyl-butanoate-pai19009024 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PAI 19 009024
Molecular Formula : C15H20F3NO3S
Molecular Weight : 351.38
stdClass Object ( [pname] => Methyl 3-hydroxy-4-(2,4,5-trifluorophenyl)butanoate [catalogue_number] => PAI 19 009025 [category_ids] => ,70, [chemical_name] => [weight] => 248.2 [form] => C11H11F3O3 [cas] => 1253056-13-1 [pslug] => 1253056-13-1-methyl-3-hydroxy-4-2-4-5-trifluorophenyl-butanoate-pai19009025 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PAI 19 009025
Molecular Formula : C11H11F3O3
Molecular Weight : 248.2
stdClass Object ( [pname] => 1-(2,4,5-Trifluorophenyl)propan-2-amine Hydrochloride [catalogue_number] => PA 19 0481076 [category_ids] => ,75,76,78,70,82, [chemical_name] => [weight] => 225.64 [form] => C9H11ClF3N [cas] => 1062587-61-4 [pslug] => 1062587-61-4-1-2-4-5-trifluorophenyl-propan-2-amine-hydrochloride-pa190481076 [latest_product] => 0 [linkproducts] => 1 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PA 19 0481076
Molecular Formula : C9H11ClF3N
Molecular Weight : 225.64
stdClass Object ( [pname] => tert-Butyl 3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazine-7(8H)-carboxylate [catalogue_number] => PAI 19 009026 [category_ids] => ,70, [chemical_name] => [weight] => 292.26 [form] => C11H15F3N4O2 [cas] => 877402-43-2 [pslug] => 877402-43-2-tert-butyl-3-trifluoromethyl-5-6-dihydro-1-2-4-triazolo-4-3-a-pyrazine-7-8h-carboxylate-pai19009026 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PAI 19 009026
Molecular Formula : C11H15F3N4O2
Molecular Weight : 292.26
stdClass Object ( [pname] => tert-Butyl 8-oxo-3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazine-7(8H)-carboxylate [catalogue_number] => PAI 19 009027 [category_ids] => ,70, [chemical_name] => [weight] => 306.25 [form] => C11H13F3N4O3 [cas] => 877402-44-3 [pslug] => 877402-44-3-tert-butyl-8-oxo-3-trifluoromethyl-5-6-dihydro-1-2-4-triazolo-4-3-a-pyrazine-7-8h-carboxylate-pai19009027 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PAI 19 009027
Molecular Formula : C11H13F3N4O3
Molecular Weight : 306.25
stdClass Object ( [pname] => Methyl 3-azido-4-(2,4,5-trifluorophenyl)butanoate [catalogue_number] => PAI 19 009028 [category_ids] => ,70, [chemical_name] => [weight] => 273.22 [form] => C11H10F3N3O2 [cas] => NA [pslug] => methyl-3-azido-4-2-4-5-trifluorophenyl-butanoate-pai19009028 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PAI 19 009028
Molecular Formula : C11H10F3N3O2
Molecular Weight : 273.22
stdClass Object ( [pname] => Methyl 3-(tosyloxy)-4-(2,4,5-trifluorophenyl)butanoate [catalogue_number] => PAI 19 009029 [category_ids] => ,70, [chemical_name] => [weight] => 402.38 [form] => C18H17F3O5S [cas] => NA [pslug] => methyl-3-tosyloxy-4-2-4-5-trifluorophenyl-butanoate-pai19009029 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PAI 19 009029
Molecular Formula : C18H17F3O5S
Molecular Weight : 402.38
stdClass Object ( [pname] => Methyl (Z)-3-(benzylimino)-4-(2,4,5-trifluorophenyl)butanoate [catalogue_number] => PAI 19 009030 [category_ids] => ,70, [chemical_name] => [weight] => 335.33 [form] => C18H16F3NO2 [cas] => NA [pslug] => methyl-z-3-benzylimino-4-2-4-5-trifluorophenyl-butanoate-pai19009030 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PAI 19 009030
Molecular Formula : C18H16F3NO2
Molecular Weight : 335.33
stdClass Object ( [pname] => Tert-butyl 3-amino-4-(2,4,5-trifluorophenyl)butanoate [catalogue_number] => PA 19 0481081 [category_ids] => ,82,78,76,75,70, [chemical_name] => [weight] => 289.3 [form] => C14H18F3NO2 [cas] => 1964462-19-8 [pslug] => 1964462-19-8- tert-butyl-3-amino-4-2-4-5-trifluorophenyl-butanoate-pa190481081 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PA 19 0481081
Molecular Formula : C14H18F3NO2
Molecular Weight : 289.3
stdClass Object ( [pname] => Tert-butyl (R)-3-((tert-butoxycarbonyl)amino)-4-(2,4,5-trifluorophenyl)butanoate [catalogue_number] => PA 19 0481082 [category_ids] => ,82,78,76,75,70, [chemical_name] => [weight] => 389.42 [form] => C19H26F3NO4 [cas] => 1246961-45-4 [pslug] => 1246961-45-4-tert-butyl-r-3-tert-butoxycarbonyl-amino-4-2-4-5-trifluorophenyl-butanoate-pa190481082 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PA 19 0481082
Molecular Formula : C19H26F3NO4
Molecular Weight : 389.42
stdClass Object ( [pname] => Methyl (Z)-3-((tert-butoxycarbonyl)amino)-4-(2,4,5-trifluorophenyl)but-2-enoate [catalogue_number] => PAI 19 009031 [category_ids] => ,70, [chemical_name] => [weight] => 345.32 [form] => C16H18F3NO4 [cas] => 1234321-77-7 [pslug] => 1234321-77-7-methyl-z-3-tert-butoxycarbonyl-amino-4-2-4-5-trifluorophenyl-but-2-enoate-pai19009031 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PAI 19 009031
Molecular Formula : C16H18F3NO4
Molecular Weight : 345.32
stdClass Object ( [pname] => Methyl 3-((tert-butoxycarbonyl)amino)-4-(2,4,5-trifluorophenyl)butanoate [catalogue_number] => PAI 19 009032 [category_ids] => ,70, [chemical_name] => [weight] => 347.33 [form] => C16H20F3NO4 [cas] => 1151240-94-6 [pslug] => 1151240-94-6-methyl-3-tert-butoxycarbonyl-amino-4-2-4-5-trifluorophenyl-butanoate-pai19009032 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PAI 19 009032
Molecular Formula : C16H20F3NO4
Molecular Weight : 347.33
stdClass Object ( [pname] => (R)-3-((tert-Butoxycarbonyl)amino)-4-(2,4,5-trifluorophenyl)butanoic Acid Triethylamine Salt [catalogue_number] => PA 19 0481090 [category_ids] => ,79,80,78,70,82, [chemical_name] => [weight] => 434.50 [form] => C21H33F3N2O4 [cas] => NA [pslug] => r-3-tert-butoxycarbonyl-amino-4-2-4-5-trifluorophenyl-butanoic-acid-triethylamine-salt-pa190481090 [latest_product] => 0 [linkproducts] => 1 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PA 19 0481090
Molecular Formula : C21H33F3N2O4
Molecular Weight : 434.50
stdClass Object ( [pname] => (S)-Sitagliptin N-Boc-Acid Impurity Triethylamine Salt [catalogue_number] => PA 19 0481092 [category_ids] => ,79,80,78,70,82, [chemical_name] => [weight] => 434.50 [form] => C21H33F3N2O4 [cas] => NA [pslug] => s-sitagliptin-n-boc-acid-impurity-triethylamine-salt-pa190481092 [latest_product] => 0 [linkproducts] => 1 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PA 19 0481092
stdClass Object ( [pname] => N,N-Diisopropyl-3-oxo-4-(2,4,5-trifluorophenyl)butanamide [catalogue_number] => PA 19 0481093 [category_ids] => ,69,71,78,70,82, [chemical_name] => [weight] => 315.34 [form] => C16H20F3NO2 [cas] => NA [pslug] => n-n-diisopropyl-3-oxo-4-2-4-5-trifluorophenyl-butanamide-pa190481093 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PA 19 0481093
Molecular Formula : C16H20F3NO2
Molecular Weight : 315.34
stdClass Object ( [pname] => (R)-10-(2,4,5-Trifluorobenzyl)-3-(trifluoromethyl)-5,6,9,10-tetrahydro-8H-[1,2,4]triazolo[3',4':3,4]pyrazino[1,2-a]pyrimidin-8-one [catalogue_number] => PA 19 0481094 [category_ids] => ,69,71,78,70,82, [chemical_name] => [weight] => 403.29 [form] => C16H11F6N5O [cas] => 2821750-76-7 [pslug] => 2821750-76-7-r-10-2-4-5-trifluorobenzyl-3-trifluoromethyl-5-6-9-10-tetrahydro-8h-1-2-4-triazolo-3-4-3-4-pyrazino-1-2-a-pyrimidin-8-one-pa190481094 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PA 19 0481094
Molecular Formula : C16H11F6N5O
Molecular Weight : 403.29
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