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Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Efinaconazole, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Efinaconazole 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 Efinaconazole-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.

Efinaconazole Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Efinaconazole 13CD2 Stable Isotopes CS-O-16776 164650-44-6 (Unlabeled) Enquire
Efinaconazole 13CD6 Stable Isotopes CS-CX-00632 164650-44-6 (Unlabeled) Enquire
Efinaconazole D4 Stable Isotopes CS-T-93719 164650-44-6 (Unlabeled) Enquire


API Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Efinaconazole API Standards CS-O-11195 164650-44-6 Enquire


Metabolites

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Efinaconazole H3 metabolite Metabolites CS-O-50131 1579886-77-3 Enquire
Efinaconazole H4 metabolite Metabolites CS-O-50130 Not Available Enquire
Efinaconazole-N-oxide Metabolites CS-T-93561 2055038-63-4 In Stock


Impurities

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
​Methylene Methanone Impurity Impurities CS-EO-01199 188904-84-9 Enquire
(1-Benzoylpiperidin-4-yl)methanol Impurities CS-EO-01198 19980-00-8 Enquire
(2R,3R)-2-(2,4-difluorophenyl)-3-(((2R,3R)-2-(2,4-difluoroph... Impurities CS-O-36347 Not Available Enquire
(2R,3S)-Efinaconazole Impurities CS-O-14194 2055038-60-1 Enquire
(2R,3S)-Efinaconazole p-Toluenesulfonic acid Impurities CS-O-44979 Not Available Enquire
(2S,3R)-Efinaconazole Impurities CS-T-93965 Not Available Enquire
(2S,3R)-Efinaconazole Impurities CS-O-14195 2055038-61-2 Enquire
(2S,3S)-Efinaconazole Impurities CS-O-15241 164650-45-7 Enquire
2-(4-fluoro-2-(4-methylenepiperidin-1-yl)phenyl)-1-(1H-1,2,4... Impurities CS-O-56679 Not Available Enquire
des-4-methylenepiperidine Efinaconazole (2R, 3S) epoxide imp... Impurities CS-O-32442 127000-90-2 Enquire
des-4-methylenepiperidine Efinaconazole (2S, 3R) epoxide imp... Impurities CS-O-32443 135270-07-4 Enquire
Efinaconazole (2R,3R)-diol O-methanesulfonate Impurities CS-O-39651 133775-26-5 In Stock
Efinaconazole (2S,3S) Diol Enantiomer Impurities CS-O-32446 135270-05-2 In Stock
Efinaconazole cyclic impurity Impurities CS-T-93853 2252350-10-8 (Freebase) Enquire
Efinaconazole Impurity 1 Impurities CS-O-14192 135270-10-9 Enquire
Efinaconazole Impurity 11 Impurities CS-EO-00771 Not Available Enquire
Efinaconazole Impurity 12 Impurities CS-EO-00813 Not Available Enquire
Efinaconazole Impurity 13 Impurities CS-P-08174 2055912-03-1 Enquire
Efinaconazole Impurity 14 Impurities CS-EO-00814 126918-16-9 Enquire
Efinaconazole Impurity 17 Impurities CS-O-34488 2055038-64-5 Enquire
Efinaconazole Impurity 18 Impurities CS-O-44988 Not Available Enquire
Efinaconazole Impurity 19 Impurities CS-EO-01079 Not Available Enquire
Efinaconazole Impurity 2 Impurities CS-O-14193 135270-10-9 Enquire
Efinaconazole Impurity 3 Impurities CS-O-33119 Not Available Enquire
Efinaconazole Impurity 36 Impurities CS-O-56658 909274-76-6 Enquire
Efinaconazole Impurity 37 Impurities CS-O-56657 1783748-37-7 Enquire
Efinaconazole Impurity 5 Impurities CS-EO-00067 2122222-10-8 Enquire
Efinaconazole Impurity 51 Chloride Impurities CS-P-09149 Not Available Enquire
Efinaconazole Impurity 9 methanesulfonate salt Impurities CS-EO-03519 2122222-14-2 (Freebase) Enquire
Efinaconazole nitrosamine impurity Impurities CS-O-43411 Not Available In Stock
Efinaconazole oxetane ring impurity Impurities CS-O-46696 Not Available Enquire
Efinaconazole Related Impurity 6 Impurities CS-P-07811 135270-13-2 Enquire


Intermediates

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(2R,3R)-2-(2,4-difluorophenyl)-1-(1H-1,2,4-triazol-1-yl)buta... Intermediates CS-O-32445 133775-25-4 In Stock
1-N-Boc-4-Methylenepiperidine Intermediates CS-AC-02493 159635-49-1 In Stock