Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Fentanyl, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Fentanyl 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 Fentanyl-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.
Our Fentanyl-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.
Fentanyl Related Compounds
Stable Isotopes
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 2-Oxofentanyl-d5 | Stable Isotopes | CS-T-94425 | 2714485-19-3 | Enquire |
| 3-Methylthiofentanyl-d3 | Stable Isotopes | CS-T-103238 | 1346602-10-5 | Enquire |
| a-Methyl Fentanyl-d3 Hydrochloride | Stable Isotopes | CS-T-103171 | 1246817-79-7 | Enquire |
| Beta-Hydroxy-3-methylfentanyl-d3 | Stable Isotopes | CS-T-103172 | 1217640-92-0 | Enquire |
| Fentanyl EP Impurity D-d5 (Phenethyl-d5) | Stable Isotopes | CS-O-54630 | 21409-26-7 (Unlabelled) | In Stock |
| Fentanyl-D5 Hydrochloride | Stable Isotopes | CS-O-52483 | 2747915-16-6 | Enquire |
| N-Nitroso Fentanyl EP Impurity D-d5 (Phenethyl-d5) | Stable Isotopes | CS-O-54052 | 1184873-14-0 (Unlabelled) | In Stock |
| N-Nitroso Fentanyl EP Impurity D-d5 (Phenyl-d5) | Stable Isotopes | CS-O-53988 | 1184873-14-0 (Unlabelled) | In Stock |
| N-Nitroso Fentanyl EP Impurity D-d5 (Piperidin-d5) | Stable Isotopes | CS-O-54059 | 1184873-14-0 (Unlabelled) | Enquire |
API Standards
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Butyrfentanyl | API Standards | CS-EK-00013 | 1169-70-6 | In Stock |
Metabolites
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Cyclopentyl fentanyl | Metabolites | CS-O-48335 | 2088918-01-6 | Enquire |
| Despropionyl 2-fluorofentanyl Hydrochloride | Metabolites | CS-O-57352 | 2306827-07-4 | In Stock |
| Norfentanyl | Metabolites | CS-CX-00660 | 1609-66-1 | Enquire |
Impurities
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 2'-Fluoro ortho-fluorofentanyl | Impurities | CS-O-48267 | 2748343-88-4 | Enquire |
| 3-Methylthiofentanyl | Impurities | CS-O-48272 | 86052-04-2 | Enquire |
| Benzyl Fentanyl | Impurities | CS-T-05647 | 1474-02-8 | In Stock |
| beta-Hydroxyfentanyl | Impurities | CS-EO-03556 | 78995-10-5 | Enquire |
| Fentanyl Impurity A | Impurities | CS-SN-00123 | 1233011-07-8 | Enquire |
| Furanyl fentanyl (hydrochloride) | Impurities | CS-O-53035 | 101365-56-4 | Enquire |
| N-Nitroso Fentanyl EP Impurity J | Impurities | CS-EO-02594 | 1184873-13-9 | Enquire |
| N-Nitroso Fentanyl Impurity 1 | Impurities | CS-EO-02652 | Not Available | Enquire |
| N-phenyl-1-(2-phenylethyl) piperidin-4-amine | Impurities | CS-O-31567 | 21409-26-7 | In Stock |
| Phenacyl Fentanyl | Impurities | CS-O-16354 | 1796-40-3 | Enquire |
| Phenacyl Fentanyl HCl | Impurities | CS-O-56358 | 1796-40-3 (Freebase) | In Stock |
| Thiofuranyl fentanyl | Impurities | CS-O-48232 | 2306823-38-9 | In Stock |
Building Blocks
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| o-Fluorobutyryl fentanyl | Building Blocks | CS-O-48283 | 2163847-76-3 | Enquire |
| o-Fluorofentanyl | Building Blocks | CS-O-48309 | 910616-29-4 | Enquire |
| ortho-Fluoroacryl fentanyl | Building Blocks | CS-O-48294 | 2309383-09-1 | Enquire |
| ortho-Fluoroisobutyryl fentanyl | Building Blocks | CS-O-48278 | 2351142-33-9 | Enquire |
| ortho-Methyl acetylfentanyl | Building Blocks | CS-O-48277 | 90736-11-1 | Enquire |
| ortho-Methyl methoxyacetyl fentanyl | Building Blocks | CS-O-48276 | 2748485-22-3 | Enquire |
| Para-chloroisobutyryl fentanyl | Building Blocks | CS-O-48273 | 244195-34-4 | Enquire |
| Para-Fluoro furanyl fentanyl | Building Blocks | CS-O-48271 | 1802489-71-9 | Enquire |
| Tetrahydrofuranyl fentanyl | Building Blocks | CS-O-48311 | 2142571-01-3 | Enquire |