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

Epoxide Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
21-(1-Ethoxyethyl) Beclomethasone 9,11-Epoxide-d5 Stable Isotopes CS-T-99560 Not Available Enquire
21-O-Acetyl Dexamethasone-d5 9,11-Epoxide (Major) Stable Isotopes CS-T-94390 unlabelled: 2884-51-7 Enquire
Betamethasone 9,11-Epoxide 17,21-Dipropionate-d10 Stable Isotopes CS-T-99688 Not Available Enquire
Betamethasone 9,11-Epoxide 17,21-Dipropionate-d5 Stable Isotopes CS-T-99687 Not Available Enquire
Betamethasone 9,11-Epoxide 17-Propionate-d5 Stable Isotopes CS-T-99689 Not Available Enquire
Carbamazepine 10,11-Epoxide-d8 (Major) Stable Isotopes CS-T-93883 36507-30-9 (unlabelled) Enquire
Dexamethasone 9,11-Epoxide D3 Stable Isotopes CS-T-102455 24916-90-3(Unlabelled) Enquire
Dexamethasone 9,11-Epoxide-d5 Stable Isotopes CS-T-102761 24916-90-3(Unlabelled) Enquire
Dulcitol-13C6 Diepoxide Stable Isotopes CS-T-97554 Not Available Enquire
Flunarizine Epoxide-D₇ Stable Isotopes CS-T-103943 144917-53-3(unlabelled) Enquire
Flunarizine Epoxide-D₈ Stable Isotopes CS-T-103944 144917-53-3(unlabelled) Enquire
Loratadine-d4 Epoxide N-Oxide Stable Isotopes CS-T-102892 1794754-14-5 Enquire
Menaquinone 7-d7 2,3-Epoxide Stable Isotopes CS-T-101157 Not Available Enquire
N(4)-desoxychlordiazepoxide D5 Stable Isotopes CS-O-47492 4393-72-0(Unlabelled) Enquire
N-Demethyl Chlordiazepoxide-d5 Stable Isotopes CS-T-102756 7722-15-8(Unlabelled) Enquire
Vitamin K1-[d7] 2,3-Epoxide Stable Isotopes CS-I-00441 1588767-68-3 Enquire
Betamethasone 9,11-Epoxide 21-Propionate-D5 Stable Isotopes CS-O-16094 205105-83-5 (Unlabeled) Enquire
Betamethasone-D5 9,11-Epoxide Stable Isotopes CS-O-16093 981-34-0 (Unlabeled) Enquire
Menaquinone 4-d7 2,3-Epoxide Stable Isotopes CS-T-80127 1233937-43-3 Enquire
Vitamin K1-d7 2,3-Epoxide Stable Isotopes CS-T-87821 1795136-97-8 Enquire


Metabolite

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Betamethasone 9,11-Epoxide Metabolite CS-T-49076 981-34-0 In Stock
17-Beta-Hydroxy Exemestane Epoxide Metabolite CS-P-07830 1331732-05-8 Enquire


Impurity

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
16,17-Epoxide Desoximetasone Impurity CS-EO-02786 Not Available Enquire
16-Alpha Methyl Epoxide Impurity CS-T-52335 24916-90-3 In Stock
Ambrisentan Epoxide Impurity CS-T-20958 76527-25-8 In Stock
Atorvastatin Diepoxide Calcium Salt Impurity CS-EO-01907 1807481-01-1 In Stock
Atorvastatin Diepoxide Impurity Impurity CS-EO-00023 887470-43-1 In Stock
Atorvastatin Lactone Diepoxide Impurity CS-O-14628 1046118-40-4 In Stock
Bisoprolol Epoxide Impurity Impurity CS-O-32003 66722-57-4 In Stock
Carvedilol Epoxide Impurity Impurity CS-O-14108 51997-51-4 In Stock
Chlordiazepoxide oxaziridine Impurity CS-O-44608 17953-23-0 Enquire
Chlordiazepoxide Oxime Impurity Impurity CS-T-02287 18097-52-4 In Stock
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
Diltiazem Epoxide (2R,3S) Isomers Impurity CS-ED-41726 96125-49-4 Enquire
Diltiazem Epoxide (2S,3R) Isomers Impurity CS-ED-41725 137173-40-1 Enquire
Doxepin epoxide Impurity CS-O-44448 Not Available Enquire
Flunisolide-9β,11β-epoxide Impurity CS-F-00249 Not Available Enquire
Hydrocortisone (9ß,11ß)-Epoxide Impurity CS-T-55721 10072-97-6 In Stock
Hydrocortisone-9β,11β-epoxide-21-acetate Impurity CS-F-00252 4383-30-6 Enquire
Linezolid Epoxide Impurity Impurity CS-O-41661 1634630-28-6 Enquire
Menadione 2,3 - epoxide Impurity CS-O-56703 15448-59-6 Enquire
Phytonadione Epoxide Impurity (Trans) Impurity CS-O-56700 41018-27-3 Enquire
Travoprost Epoxide derivative Impurity CS-O-14932 Not Available In Stock
Travoprost Epoxide derivative - 1 Impurity CS-O-46852 Not Available Enquire
Travoprost Epoxide derivative - 2 Impurity CS-O-46853 Not Available Enquire
Travoprost Epoxide derivative - 3 Impurity CS-O-46854 Not Available Enquire
Travoprost Epoxide derivative - 4 Impurity CS-O-46855 Not Available Enquire
Tulathromycin Epoxide Impurity Impurity CS-O-54011 ---- Enquire
(2RS,3RS)-3-(2-Ethoxyphenoxy)-3-phenylpropene-1,2-epoxide Impurity CS-T-22409 98769-72-3 Enquire
(R)-Limonene 1,2-epoxide (Mixture of Diastereomers) Impurity CS-T-31083 203719-54-4 Enquire
(R,R,R)-Carvone Epoxide Impurity CS-T-70877 36616-60-1 Enquire
1,3-Butadiene Diepoxide Impurity CS-T-70486 1464-53-5 Enquire
1,4-Cyclohexadiene Monoepoxide Impurity CS-T-74137 6253-27-6 Enquire
1,5-Hexadienediepoxide Impurity CS-DL-00497 1888-89-7 Enquire
15-epi-Travoprost Epoxide Impurity CS-P-02728 Not Available Enquire
16 Beta-Methyl epoxide-17-valerate Impurity CS-O-36272 52619-21-3 Enquire
21-(1-Ethoxyethyl) Beclomethasone9,11-Epoxide Impurity CS-BI-00009 Not Available Enquire
5'-O-Trityluridine-2',3'-lyxo-epoxide Impurity CS-T-62588 96253-10-0 Enquire
Abiraterone Acetate 5,6-Epoxide Impurity CS-TA-00108 1868064-50-9 Enquire
Abiraterone-5,6-Epoxide Impurity CS-P-00496 Not Available Enquire
Atorvastatin Diepoxide Lactone Impurity CS-EO-01796 2591410-14-7 Enquire
Benzo[a]pyrene Diol Epoxide Impurity CS-T-49003 58917-67-2 Enquire
Carfilzomib Peptide Epoxide Impurity CS-O-33839 Not Available Enquire
Cholesterol 5alpha,6alpha-epoxide Impurity CS-T-72191 1250-95-9 Enquire
Cladospirone Bisepoxide Impurity CS-T-72871 155866-40-3 Enquire
Conduritol B Epoxide Impurity CS-T-51246 6090-95-5 Enquire
Cyclobenzaprine 10,11 epoxide Impurity CS-ED-00955 58256-08-9 Enquire
Desloratadine Epoxide Impurity CS-T-73103 1346604-23-6 Enquire
Dronabinol Epoxide Impurity CS-T-53993 56687-60-6 Enquire
Epitulipinolide diepoxide Impurity CS-BT-00316 39815-40-2 Enquire
Flunarizine Epoxide Impurity CS-O-41549 144917-53-3 Enquire
Latanoprost Epoxide (mixture of isomers) Impurity CS-O-15879 Not Available Enquire
Menaquinone 4 2,3-Epoxide Impurity CS-T-31773 72908-86-2 Enquire
Nadolol Epoxide Impurity Impurity CS-O-40935 35697-15-5 Enquire
Phytonadione Epoxide Impurity (Trans) Impurity CS-EO-00739 52691-91-5 Enquire
Protriptyline-10,11-Epoxide Impurity CS-P-00337 Not Available Enquire
rac-cis-4-(2,4-Difluorophenyl)-3-methyl-2(5H)-furanone 3,4-E... Impurity CS-T-18399 1329610-78-7 Enquire
Rutacridone epoxide Impurity CS-ED-01394 77996-03-3 Enquire
trans-S-Methoprene-Epoxide Impurity CS-P-01679 65277-96-5 Enquire


Intermediate

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
21-O-Acetyl Dexamethasone 9,11-Epoxide Intermediate CS-T-47130 2884-51-7 In Stock
Landiolol Epoxide intermediate Intermediate CS-O-50928 Not Available Enquire


Nitrosamine

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
N-Nitroso Chlordiazepoxide Nitrosamine CS-O-45707 51715-17-4 In Stock


Pesticide Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
cis-Heptachlor Epoxide Pesticide Standards CS-T-55518 1024-57-3 In Stock
trans-Heptachlor Epoxide Pesticide Standards CS-T-55519 28044-83-9 Enquire


Deuterated Reagents

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Epichlorohydrin D5 Deuterated Reagents CS-T-54063 69533-54-6 Enquire