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Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Linagliptin, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Linagliptin impurity reference standards are invaluable for pharmaceutical research, supporting product development, ANDA and DMF submissions, quality control (QC), method validation, and stability studies. They also aid in identifying unknown impurities and assessing genotoxic potential.
Our Linagliptin-related products undergo thorough characterization and are supplied with detailed Certificates of Analysis (COA) and analytical data that meet regulatory requirements. All supplied products are re-tested at regular intervals to ensure ongoing quality and compliance.

Linagliptin Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
3-Deamino 3-Hydroxy Linagliptin-d3 Stable Isotopes CS-T-100569 1620278-39-8 (Unlabeled) Enquire
Linagliptin Acetamide-d3 Stable Isotopes CS-O-45658 ---- In Stock
Linagliptin D5 Stable Isotopes CS-O-49797 668270-12-0 (Unlabelled) Enquire
Linagliptin D6 Stable Isotopes CS-O-49798 668270-12-0 (Unlabelled) Enquire
Linagliptin D8 Stable Isotopes CS-O-49809 668270-12-0 (Unlabelled) Enquire
Linagliptin Methyldimer-d6 Stable Isotopes CS-T-100100 1418133-47-7 (unlabelled) Enquire
Linagliptin-d3 Stable Isotopes CS-TB-80231 1398044-48-8 In Stock
Linagliptin-d4 Stable Isotopes CS-O-06724 2140263-92-7 In Stock
Linagliptin-13C-d3 Stable Isotopes CS-EO-00817 1398044-43-3 Enquire
Linagliptin-d9 Stable Isotopes CS-O-44781 Not Available Enquire
N-Phthalimide-linagliptin-d3 Stable Isotopes CS-T-99877 Not Available Enquire


API

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Linagliptin API CS-O-30970 668270-12-0 In Stock


Metabolite

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Linagliptin Metabolite CD1790 Metabolite CS-P-08365 2803369-89-1 In Stock


Impurity

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(4-​Methylquinazolin-​2-​yl)​methanol Impurity CS-AQ-00174 13535-91-6 In Stock
(E)-4-styryl Linagliptin Impurity Impurity CS-O-45908 Not Available Enquire
(R)-8-(3-aminopiperidin-1-yl)-1-(but-2-yn-1-yl)-3-methyl-7-(... Impurity CS-O-43292 Not Available Enquire
(R)-Diethyl 2-((tert-butoxycarbonyl)amino)pentanedioate Impurity CS-O-48181 93720-76-4 Enquire
(Z)-4-styryl Linagliptin Impurity Impurity CS-O-45909 Not Available Enquire
1H-Purine-2,6-dione, 8-[(3R)-3-amino-1-piperidinyl]-3,9-dihy... Impurity CS-O-48008 2382729-41-9 Enquire
3-Deamino 3-Hydroxy Linagliptin Impurity CS-SN-00141 1620278-39-8 In Stock
7-(But-2-yn-1-yl)-3-methyl-1H-purine-2,6(3H,7H)-dione Impurity CS-O-14821 586408-08-4 In Stock
7-des-2-butyn-7-methyl 3-Deamino 3-Hydroxy Linagliptin Impurity CS-O-58823 Not Available In Stock
7-des-2-butyn-7-methyl 3-Deamino 3-Hydroxy Linagliptin (S-is... Impurity CS-O-58822 Not Available In Stock
7-des-2-butyn-7-methyl Linagliptin Impurity CS-O-58150 1339955-47-3 In Stock
7-des-2-butyn-7-methyl Linagliptin (S-isomer) Impurity CS-O-58821 Not Available In Stock
8-Bromo-3-methyl-7-((4-methylquinazolin-2-yl)methyl)-1H-puri... Impurity CS-AQ-00162 2749405-42-1 In Stock
8-Bromo-7-(2-butyn-1-yl)-3-methylxanthine] Impurity CS-O-31413 666816-98-4 In Stock
8-bromo-7-(3-bromobut-2-en-1-yl)-3-methyl-1H-purine-2,6(3H,7... Impurity CS-O-43286 Not Available Enquire
8-Bromo-7-(but-2-en-1-yl)-3-methyl-6-((4-methylquinazolin-2-... Impurity CS-O-44888 Not Available Enquire
Bromobutene Linagliptin impurity VII Impurity CS-O-15765 1446263-39-3 In Stock
Hydroxy Methyl Linagliptin Impurity CS-EO-01211 ---- In Stock
Linagliptin 8-Bromo Impurity Impurity CS-O-32157 93703-24-3 In Stock
linagliptin butane impurity Impurity CS-O-45868 ---- In Stock
Linagliptin Chloroquinazoline impurity Impurity CS-O-47202 2638512-67-9 Enquire
Linagliptin Diene Impurity Impurity CS-EO-02289 2463617-43-6 Enquire
Linagliptin Dimer (Racemic Mixture) Impurity CS-O-41600 2759280-92-5 Enquire
Linagliptin Dimer Impurity Impurity CS-EO-01615 ---- Enquire
Linagliptin Dimer impurity (N-C-C-C Dimer) Impurity CS-O-39903 2463617-49-2 Enquire
Linagliptin Dimer Impurity 3 Impurity CS-O-56527 ---- Enquire
Linagliptin Dimer Impurity 4 Impurity CS-EO-03973 ---- Enquire
Linagliptin Dimer Impurity 5 Impurity CS-O-56530 ---- Enquire
Linagliptin Dimer Impurity 6 Impurity CS-O-56526 1643364-41-3 Enquire
Linagliptin Ethyldimer Impurity CS-T-94240 ---- Enquire
Linagliptin Glycosamine Impurity CS-O-49726 ---- Enquire
Linagliptin Hydroxy Impurity Impurity CS-O-47958 ---- Enquire
Linagliptin Impurity 106 Impurity CS-O-45910 Not Available Enquire
Linagliptin impurity 115 Impurity CS-O-52277 Not Available Enquire
Linagliptin Impurity 117 Impurity CS-O-52278 Not Available In Stock
Linagliptin impurity 14 Impurity CS-EO-00296 2253964-98-4 In Stock
Linagliptin Impurity 17 Impurity CS-EO-01092 2489212-72-6 In Stock
Linagliptin Impurity 20 Impurity CS-O-43293 2514949-81-4 In Stock
Linagliptin Impurity 23 Impurity CS-O-56532 ---- Enquire
Linagliptin Impurity 24 Impurity CS-O-56534 ---- Enquire
Linagliptin Impurity 25 Impurity CS-EO-02102 ---- Enquire
Linagliptin Impurity 26 Impurity CS-O-56536 ---- Enquire
Linagliptin Impurity 28 Impurity CS-O-56539 ---- Enquire
Linagliptin Impurity 29 Impurity CS-EO-00109 ---- Enquire
Linagliptin Impurity 3 Impurity CS-O-14121 668269-51-0 In Stock
Linagliptin Impurity 30 Impurity CS-P-08375 1573118-33-8 In Stock
Linagliptin Impurity 31 Impurity CS-O-56549 Not Available In Stock
Linagliptin Impurity 36 Impurity CS-EO-02029 2074688-82-5 Enquire
Linagliptin Impurity 41 Impurity CS-O-39218 2074688-84-7 In Stock
Linagliptin Impurity 44 Impurity CS-AQ-00168 1791405-13-4 In Stock
Linagliptin Impurity 46 Impurity CS-O-58224 ---- Enquire
Linagliptin Impurity 49 Impurity CS-EO-01850 2468656-63-3 In Stock
Linagliptin Impurity 5 Impurity CS-EO-00108 2253964-85-9 In Stock
Linagliptin Impurity 6 TriHCl Impurity CS-O-53849 1418133-47-7(Free base) Enquire
Linagliptin Impurity 72 Trifluoroacetate Impurity CS-O-52276 Not Available Enquire
Linagliptin Impurity 75 Impurity CS-O-40788 ---- Enquire
Linagliptin Impurity 75 HCl salt Impurity CS-EO-02803 ---- Enquire
Linagliptin Impurity 76 Impurity CS-EO-04013 ---- Enquire
Linagliptin Impurity 76 TrisHCl salt Impurity CS-EO-03191 ---- Enquire
Linagliptin Impurity B Impurity CS-O-54249 2138392-83-1 In Stock
Linagliptin impurity C Impurity CS-AQ-00163 Not Available Enquire
Linagliptin Impurity D Impurity CS-AQ-00164 ---- In Stock
Linagliptin Impurity E Impurity CS-AQ-00165 1446263-38-2 In Stock
Linagliptin Impurity F Impurity CS-AQ-00166 2416949-69-2 In Stock
Linagliptin Impurity G Impurity CS-AQ-00167 668270-11-9 In Stock
Linagliptin Impurity I Impurity CS-EO-02162 ---- Enquire
Linagliptin Impurity II Impurity CS-EO-02163 ---- Enquire
Linagliptin Impurity J Impurity CS-AQ-00170 2436762-89-7 In Stock
Linagliptin Impurity K Impurity CS-AQ-00171 ---- In Stock
Linagliptin Impurity M Impurity CS-AQ-00173 Not Available In Stock
Linagliptin Impurity N Impurity CS-EO-01093 ---- Enquire
Linagliptin Impurity O Impurity CS-AQ-00175 2518331-40-1 In Stock
Linagliptin Impurity P Impurity CS-AQ-00176 2748381-67-9 In Stock
Linagliptin Impurity Q Impurity CS-AQ-00177 1673546-62-7 In Stock
Linagliptin impurity R Impurity CS-AQ-00178 1646355-34-1 In Stock
Linagliptin Impurity S Impurity CS-AQ-00179 2279114-31-5 In Stock
Linagliptin Impurity T Impurity CS-AQ-00180 2279114-27-9 In Stock
Linagliptin Impurity U Impurity CS-AQ-00181 666816-91-7 In Stock
Linagliptin Impurity V Impurity CS-AQ-00182 ---- In Stock
Linagliptin Impurity W Impurity CS-AQ-00183 6140-11-0 In Stock
Linagliptin Impurity X Impurity CS-AQ-00184 668273-74-3 In Stock
Linagliptin Impurity Y Impurity CS-AQ-00185 2428491-17-0 In Stock
Linagliptin Impurty VII Impurity CS-EO-00358 ---- In Stock
Linagliptin Lactose Adduct Impurity CS-O-57459 ---- Enquire
Linagliptin Methyldimer Impurity CS-O-15699 1418133-47-7 In Stock
Linagliptin N-Acetyl Impurity Impurity CS-O-15822 1803079-49-3 In Stock
Linagliptin quinazolin Dimer Impurity CS-O-49147 2469626-53-5 Enquire
Linagliptin Stereochemical Impurity Impurity CS-O-55596 1383917-84-7 Enquire
Linagliptin Tartaric Acid Impurity Impurity CS-O-56558 ---- Enquire
Linagliptin(R,S) N,N'-Methylene Dimer Impurity CS-O-53612 ---- Enquire
Linagliptin-4-methylquinazolin-2-yl-methyl dimer Impurity CS-T-102502 Not Available In Stock
Linagliptine Chloro Impurity Impurity CS-O-45083 Not Available Enquire
N-(2-acetylphenyl)-3-Hydroxy Linagliptin impurity Impurity CS-O-58825 Not Available In Stock
N-(2-acetylphenyl)-3-Hydroxy Linagliptin impurity (S-isomer) Impurity CS-O-58824 Not Available In Stock
N-Aminoacyl Linagliptin Impurity CS-O-15805 2983074-55-9 In Stock
N-Boc Linagliptin Impurity CS-T-68140 668273-75-4 In Stock
N-Formyl Linagliptin Impurity Impurity CS-O-33528 2137744-33-1 In Stock
N-Hydroxy Linagliptin Impurity CS-O-46478 Not Available Enquire
N-Phthalimide-linagliptin Impurity CS-T-83899 886588-63-2 In Stock
(2Z)-1,3-Dibromo-2-butene Impurity CS-O-41015 86365-84-6 Enquire


Intermediate

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
1-(2-Aminophenyl)ethanone Intermediate CS-M-55663 551-93-9 In Stock
1-[(4-Methylquinazolin-2-yl)methyl)]-3-methyl-7-(2-butin-1-y... Intermediate CS-O-31412 853029-57-9 In Stock
2-(chloromethyl)-4-methylquinazoline Intermediate CS-O-31217 109113-72-6 In Stock


Fine Chemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
3-(2-Cyanoacetyl)-1-methylurea Fine Chemicals CS-N-05166 6972-77-6 In Stock
Linagliptin N-Aminoacyl Impurity Fine Chemicals CS-ZB-33371 1955514-80-3 Enquire


Nitrosamine

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(R)-1-nitrosopiperidin-3-amine (Mixture of Isomers) Nitrosamine CS-O-43338 Not Available Enquire
3-Amino N-nitrosopiperidin Linagliptin Nitrosamine CS-O-50453 ---- Enquire
6-Amino-1-methyl-5-nitrosouracil Nitrosamine CS-T-65471 6972-78-7 In Stock
Desalkyl N-nitroso Linagliptin Nitrosamine CS-O-42245 ---- Enquire
Desbutyl N-nitroso Linagliptin impurity 16 Nitrosamine CS-O-46605 Not Available Enquire
Desbutyl N-nitroso Linagliptin Impurity 52 Nitrosamine CS-O-46607 Not Available Enquire
Desmethyl N-nitroso Linagliptin Nitrosamine CS-O-42244 ---- Enquire
Linagliptin 8-Bromo N-NitrosoImpurity Nitrosamine CS-O-46606 Not Available Enquire
Linagliptin Nitroso Dimer Impurity 1 Nitrosamine CS-O-59892 ---- Enquire
Linagliptin Nitroso Impurity 10 Nitrosamine CS-EO-04066 ---- Enquire
Linagliptin Nitroso Impurity 5 Nitrosamine CS-O-51615 2396758-93-1 In Stock
N-Dinitroso Linagliptin Regio Isomer Nitrosamine CS-O-59891 ---- Enquire
N-Nitroso Linagliptin Impurity Nitrosamine CS-EO-02668 3031851-92-7 In Stock
N-Nitroso Linagliptin impurity 5 Nitrosamine CS-O-55664 Not Available In Stock
N-nitroso linagliptin impurity 92 Nitrosamine CS-O-46604 Not Available Enquire
N-nitroso Linagliptin Impurity C Nitrosamine CS-O-42246 ---- Enquire
N-Nitroso Linagliptin Impurity E Nitrosamine CS-O-54847 Not Available In Stock
N-Nitroso Linagliptin Related Compound B Nitrosamine CS-EO-02669 Not Available Enquire


Therapeutic

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Linagliptin Impurity 4 Therapeutic CS-O-14122 1638744-06-5 Enquire


Analytical Standard

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Linagliptin D4-AR Grade Analytical Standard CS-O-06724-10MG 2140263-92-7 Enquire
Linagliptin D4-AR Grade-10 ppm/ACN Analytical Standard CS-O-06724-1ML 2140263-92-7 Enquire