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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

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


Metabolite

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


Impurity

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
​Methylene Methanone Impurity Impurity CS-EO-01199 188904-84-9 Enquire
(2R,3S)-2-(2,4-Difluorophenyl)-1-(1H-1,2,4-triazol-1-yl)buta... Impurity CS-O-33085 135270-11-0 Enquire
(2R,3S)-Efinaconazole p-Toluenesulfonic acid Impurity CS-O-44979 Not Available Enquire
(2S,3R)-2-(2,4-Difluorophenyl)-1-(1H-1,2,4-triazol-1-yl)-2,3... Impurity CS-T-90809 135272-36-5 Enquire
2-(4-fluoro-2-(4-methylenepiperidin-1-yl)phenyl)-1-(1H-1,2,4... Impurity CS-O-56679 ---- Enquire
des-4-methylenepiperidine Efinaconazole (2R, 3S) epoxide imp... Impurity CS-O-32442 127000-90-2 Enquire
des-4-methylenepiperidine Efinaconazole (2S, 3R) epoxide imp... Impurity CS-O-32443 135270-07-4 Enquire
Efinaconazole (2R,3R)-diol O-methanesulfonate Impurity CS-O-39651 133775-26-5 In Stock
Efinaconazole (2S,3S) Diol Enantiomer Impurity CS-O-32446 135270-05-2 In Stock
Efinaconazole (2S,3S)-Diol-MSA Salt Impurity CS-EO-03518 135270-05-2 (Freebase) Enquire
Efinaconazole 4-Desfluoro Impurity Impurity CS-EO-04025 ---- Enquire
Efinaconazole Impurity 17 Impurity CS-O-34488 2055038-64-5 Enquire
Efinaconazole Impurity 18 Impurity CS-O-44988 Not Available Enquire
Efinaconazole Impurity 36 Impurity CS-O-56658 909274-76-6 Enquire
Efinaconazole Impurity 37 Impurity CS-O-56657 1783748-37-7 Enquire
Efinaconazole Impurity 51 Chloride Impurity CS-P-09149 Not Available Enquire
Efinaconazole Impurity 9 methanesulfonate salt Impurity CS-EO-03519 2122222-14-2 (Freebase) Enquire
Efinaconazole nitrosamine impurity Impurity CS-O-43411 Not Available In Stock
Efinaconazole oxetane ring impurity Impurity CS-O-46696 ---- Enquire
(1-Benzoylpiperidin-4-yl)methanol Impurity CS-EO-01198 19980-00-8 Enquire
(2R,3R)-2-(2,4-Difluorophenyl)-1-(1H-1,2,4-triazol-1-yl)-2,3... Impurity CS-T-91012 135133-23-2 Enquire
(2R,3R)-2-(2,4-Difluorophenyl)-1-(4H-1,2,4-triazol-4-yl)buta... Impurity CS-O-38752 2122222-14-2 Enquire
(2R,3R)-2-(2,4-difluorophenyl)-3-(((2R,3R)-2-(2,4-difluoroph... Impurity CS-O-36347 Not Available Enquire
(2R,3R)-3-((1H-1,2,4-triazol-1-yl)methyl)-6-fluoro-3-hydroxy... Impurity CS-O-33177 2252350-11-9 Enquire
(2R,3S)-Efinaconazole Impurity CS-O-14194 2055038-60-1 Enquire
(2S,3R)-Efinaconazole Impurity CS-T-93965 Not Available Enquire
(2S,3R)-Efinaconazole Impurity CS-O-14195 2055038-61-2 Enquire
(2S,3S)-Efinaconazole Impurity CS-O-15241 164650-45-7 Enquire
1-(((2R,3S)-2-(2,5-Difluorophenyl)-3-methyloxiran-2-yl)methy... Impurity CS-ED-02172 241479-73-2 Enquire
Efinaconazole cyclic impurity Impurity CS-T-93853 2252350-10-8 (Freebase) Enquire
Efinaconazole Impurity 1 Impurity CS-O-14192 135270-10-9 Enquire
Efinaconazole Impurity 11 Impurity CS-EO-00771 Not Available Enquire
Efinaconazole Impurity 12 Impurity CS-EO-00813 Not Available Enquire
Efinaconazole Impurity 13 Impurity CS-P-08174 2055912-03-1 Enquire
Efinaconazole Impurity 14 Impurity CS-EO-00814 126918-16-9 Enquire
Efinaconazole Impurity 16 Impurity CS-EO-01483 Not Available Enquire
Efinaconazole Impurity 18 Impurity CS-EO-01047 150803-08-0 Enquire
Efinaconazole Impurity 19 Impurity CS-EO-01079 Not Available Enquire
Efinaconazole Impurity 2 Impurity CS-O-14193 135270-10-9 Enquire
Efinaconazole Impurity 3 Impurity CS-O-33119 Not Available Enquire
Efinaconazole Impurity 5 Impurity CS-EO-00067 2122222-10-8 Enquire
Efinaconazole Related Impurity 6 Impurity CS-P-07811 135270-13-2 Enquire


Intermediate

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(2R,3R)-2-(2,4-difluorophenyl)-1-(1H-1,2,4-triazol-1-yl)buta... Intermediate CS-O-32445 133775-25-4 In Stock


Fine Chemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(2S)-1-(2,4-difluorophenyl)-2-((tetrahydro-2H-pyran-2-yl)oxy... Fine Chemicals CS-O-33176 127001-03-0 Enquire
3-Methylenepiperidine hydrochloride Fine Chemicals CS-MM-80890 155137-12-5 Enquire
4-methylidenepiperidine Fine Chemicals CS-ZE-20744 148133-82-8 Enquire