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

Fine Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Finerenone-d3 Stable Isotopes CS-O-59081 2917530-37-9 Enquire
Finerenone-d5 Stable Isotopes CS-T-102334 1050477-31-0 (Unlabelled) Enquire
Finerenone-d6 Stable Isotopes CS-O-55102 1050477-31-0 (Unlabelled) Enquire
meta-Amorolfine-d3 Stable Isotopes CS-T-96843 Not Available Enquire
Naftifine-d3 Hydrochloride Stable Isotopes CS-O-15998 1246833-81-7 In Stock
N-Desmethylcarboxy Terbinafine-d7 Methyl Ester Stable Isotopes CS-T-101581 1185245-14-0 Enquire
N-Nitroso Finerenone-d3 Stable Isotopes CS-O-60461 ---- Enquire
N-Nitroso N-Des 1-methyl naphthalene Terbinafine-d3 Stable Isotopes CS-O-54794 ---- Enquire
N-Nitroso N-desmethyl Terbinafine D7 Stable Isotopes CS-O-53619 Not Available In Stock
Terbinafine-d5 HCl Stable Isotopes CS-B-00390 Not Available Enquire
Terbinafine-d7 Hydrochloride Stable Isotopes CS-O-02903 1185240-27-0 In Stock
Trofinetide-d2 Stable Isotopes CS-O-59124 853400-76-7 (Unlabeled) Enquire
Trofinetide-d3 Stable Isotopes CS-O-59125 853400-76-7 Enquire
Trofinetide-d5 Stable Isotopes CS-O-59126 853400-76-7 (Unlabeled) Enquire
Trofinetide-d6 Stable Isotopes CS-O-59127 853400-76-7 (Unlabeled) Enquire
Trofinetide-d9 Stable Isotopes CS-O-59128 853400-76-7 (Unlabeled) Enquire


API

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Butenafine Hydrochloride API CS-O-11614 101827-46-7 In Stock
Finerenone API CS-O-45603 1050477-31-0 In Stock
Naftifine Hydrochloride API CS-O-30985 65473-14-5 In Stock
Nalfurafine API CS-O-59529 152657-84-6 Enquire
Terbinafine API CS-O-02503 91161-71-6 In Stock
Terbinafine hydrochloride API CS-O-10934 78628-80-5 In Stock
Trofinetide API CS-T-102337 853400-76-7 Enquire
Amorolfine API CS-O-00867 78613-35-1 Enquire
Butenafine API CS-CX-00194 101828-21-1 Enquire
Nalfurafine hydrochloride API CS-EK-01169 152658-17-8 Enquire


Metabolite

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Finerenone M10 Metabolite Metabolite CS-O-56912 ---- Enquire
Finerenone M4 Metabolite Metabolite CS-O-50093 ---- Enquire
Finerenone M5 Metabolite Metabolite CS-O-56913 ---- Enquire
Finerenone M8 Metabolite Metabolite CS-O-56914 ---- Enquire
Finerenone Metabolite M2 Metabolite CS-O-60096 2088051-07-2 Enquire
Finerenone N-Oxide Metabolite CS-O-60098 ---- Enquire
N-Desmethylcarboxyterbinafine Hydrochloride Metabolite CS-O-06026 99473-15-1(freebase) In Stock
Terbinafine N-oxide Metabolite CS-O-15752 2734288-05-0 Enquire


Impurity

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(Rac)-Finerenone Impurity CS-EO-02885 1050477-27-4 Enquire
Amorolfine EP impurity G Impurity CS-O-42928 1260498-34-7 Enquire
Amorolfine EP impurity H Impurity CS-O-42929 Not Available Enquire
Amorolfine EP impurity J Impurity CS-O-42930 Not Available Enquire
Amorolfine EP impurity K Impurity CS-O-42931 Not Available Enquire
Amorolfine EP impurity L Impurity CS-O-42932 Not Available Enquire
Amorolfine EP Impurity O Impurity CS-O-42933 73414-18-3 Enquire
Amorolfine hydrochloride impurity C Impurity CS-O-46463 78613-37-3 Enquire
Amorolfine hydrochloride impurity F Impurity CS-O-46464 106614-66-8 Enquire
Amorolfine hydrochloride impurity G Impurity CS-O-46465 106614-69-1 Enquire
Amorolfine Impurity B Impurity CS-O-14118 142347-84-0 (Racemic) Enquire
Amorolfine Impurity C Impurity CS-O-14116 2497333-07-8 In Stock
Beta-Naftifine Impurity CS-T-82924 98977-54-9 Enquire
Carboxyterbinafine Oxalate Impurity CS-B-00398 99473-14-0 (free base) Enquire
Cis-Naftifine Impurity CS-EO-03715 79416-70-9 Enquire
Dehydro Finerenone Impurity CS-O-48569 2084136-51-4 In Stock
Diethyl Trofinetide Impurity CS-O-58681 ---- Enquire
Diisopropyl Trofinetide Impurity CS-O-58682 ---- Enquire
Dimethyl Trofinetide Impurity CS-O-58680 ---- Enquire
Dipropyl Trofinetide Impurity CS-O-59761 ---- Enquire
Finerenone 2-Cyanoethyl ester impurity Impurity CS-O-46585 1050477-44-5 Enquire
Finerenone Acid Impurity Impurity CS-EO-02886 1050477-45-6 Enquire
Finerenone Acid Impurity Impurity CS-O-46733 2640506-74-5 In Stock
Finerenone benzyl acetate Impurity( racemic) Impurity CS-O-58340 2820463-47-4 Enquire
Finerenone Cyano Ethyl Ethoxy Impurity Impurity CS-O-55052 2640574-73-6 Enquire
Finerenone des-3-carboxamide-3-hydroxy impurity Impurity CS-O-57059 ---- Enquire
Finerenone Impurity 10 Impurity CS-EO-02924 2640280-84-6 Enquire
Finerenone Impurity 100 Impurity CS-O-60121 487060-63-9 Enquire
Finerenone Impurity 11 Impurity CS-EO-03012 2640280-87-9 Enquire
Finerenone Impurity 12 Impurity CS-EO-03013 2640280-86-8 Enquire
Finerenone Impurity 15 Impurity CS-EO-02925 1050477-30-9 Enquire
Finerenone Impurity 16 Impurity CS-EO-03014 Not Available Enquire
Finerenone Impurity 17 Impurity CS-EO-03015 Not Available Enquire
Finerenone Impurity 18 Impurity CS-P-09135 41935-71-1 Enquire
Finerenone Impurity 2 Impurity CS-EO-03009 1261439-08-0 Enquire
Finerenone Impurity 21 Impurity CS-EO-03181 3046141-72-1 Enquire
Finerenone Impurity 25 Impurity CS-P-09136 ---- Enquire
Finerenone Impurity 28 Impurity CS-O-53189 ---- Enquire
Finerenone Impurity 28 Impurity CS-O-57057 ---- Enquire
Finerenone Impurity 3 Impurity CS-EO-03010 1261553-82-5 Enquire
Finerenone Impurity 33 Impurity CS-O-60100 ---- Enquire
Finerenone Impurity 77 Impurity CS-O-59961 2764833-07-8 Enquire
Finerenone Impurity 9 Impurity CS-EO-03011 2640280-85-7 Enquire
N Ethyl Trofinetide Impurity CS-O-58678 2603450-06-0 Enquire
N Isopropyl Trofinetide Impurity CS-O-59086 ---- Enquire
N Methyl Trofinetide Impurity CS-O-58677 914249-36-8 Enquire
N,N Dimethyl Trofinetide Impurity CS-O-58679 2603450-10-6 Enquire
N-Butyl Trofinetide Impurity CS-O-59759 ---- Enquire
N-Desmethyl Terbinafine Impurity CS-T-16472 99473-11-7 In Stock
N-Desmethylhydroxyterbinafine Impurity CS-T-88503 162227-14-7 Enquire
N-Propyl Trofinetide Impurity CS-O-59758 ---- Enquire
Rac Finerenone desethoxy impurity Impurity CS-O-46732 2087452-81-9 Enquire
rac-Finerenone 3-methoxybenzoic acid Impurity CS-O-46735 ---- Enquire
rac-Finerenone Desethyl acid impurity Impurity CS-O-42770 ---- Enquire
rac-Finerenone Dihydro 2- hydroxy Impurity Impurity CS-O-50091 ---- Enquire
rac-Finerenone Dihydro 3-hydroxy Impurity Impurity CS-O-50092 ---- Enquire
Terbinafine Impurity 4 Impurity CS-EO-03894 123944-73-0 Enquire
Terbinafine Impurity 5 Impurity CS-O-57332 134865-58-0 Enquire
Terbinafine Impurity C Hydrochloride Impurity CS-T-53584 877265-30-0 In Stock
Terbinafine Impurity D Hydrochloride Impurity CS-T-53585 877265-33-3 In Stock
Terbinafine Related Compound 7 Impurity CS-EO-02088 2514708-08-6 Enquire
Trofinetide Dimer Impurity 1 Impurity CS-O-60248 ---- Enquire
Trofinetide Dimer Impurity 2 Impurity CS-O-60249 ---- Enquire
(Z)-Naftifine Impurity CS-O-15062 65473-08-7 Enquire
10a-Hydroxy-nalfurafine Impurity CS-T-28257 1054312-75-2 Enquire
Amorolfine EP Impurity I Impurity CS-T-88692 67468-13-7 Enquire
Amorolfine EP Impurity I HCl Impurity CS-EO-00349 1456707-58-6 Enquire
Amorolfine EP Impurity M Impurity CS-EO-00366 Not Available Enquire
Amorolfine Impurity 1 (Amorolfine Related Compound Ro 40-102... Impurity CS-P-07186 142347-84-0 Enquire
Amorolfine Impurity D Impurity CS-O-14114 Not Available Enquire
Amorolfine Impurity E Impurity CS-O-14115 2134097-34-8 Enquire
Butenafine Bis Napthyl HCl impurity Impurity CS-O-42165 99802-54-7 Enquire
Descyclopropylmethyl Nalfurafine Impurity CS-T-52230 163713-06-2 Enquire
Nalfurafine N-Oxide Impurity CS-T-59067 208042-42-6 Enquire
N-Desmethyl Terbinafine Hydrochloride Impurity CS-T-16474 152830-98-3 Enquire
N-Desmethylcarboxy Terbinafine Impurity CS-T-16187 99473-15-1 Enquire
Terbinafine Dimer Impurity Dihydrochloride Salt Impurity CS-T-93611 934365-23-8(Free Base) Enquire
Terbinafine EP Impurity F Impurity CS-EO-02071 926281-74-5 Enquire
Terbinafine Hydrochloride EP Impurity E Impurity CS-O-14225 934365-23-8 Enquire
Terbinafine impurity B Impurity CS-T-87117 78628-81-6 Enquire
Terbinafine Impurity C Impurity CS-P-00168 187540-01-8 Enquire
Terbinafine Impurity D Impurity CS-P-00169 151222-50-3 Enquire


Glucuronide

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Hydroxy Terbinafine-beta-D-Glucuronide Glucuronide CS-T-56485 99473-12-8 Enquire


Fine Chemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
2Z-Nalfurafine (1.0mg/ml in Acetonitrile) Fine Chemicals CS-TB-79085 163712-68-3 Enquire


Nitrosamine

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
N-Nitroso N-desmethyl Terbinafine Nitrosamine CS-O-44149 Not Available In Stock


Therapeutic

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Amorolfine Hydrochloride Therapeutic CS-O-11597 78613-38-4 In Stock
Cis-Terbinafine Hydrochloride Therapeutic CS-T-43324 176168-78-8 In Stock


Analytical Standard

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Finerenone Nitroso Impurity Analytical Standard CS-EO-02896-10MG ---- Enquire
N-nitroso-finerenone-100 PPM in Acetonitrile Analytical Standard CS-EO-02896-1.5ML ---- Enquire