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 |
| N-Nitroso Fentanyl ethanone intermediate-d5 (Phenethyl-d5) | Stable Isotopes | CS-O-54632 | ---- | Enquire |
Metabolite
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Cyclopentyl fentanyl | Metabolite | CS-O-48335 | 2088918-01-6 | Enquire |
| Despropionyl 2-fluorofentanyl Hydrochloride | Metabolite | CS-O-57352 | 2306827-07-4 | In Stock |
| Fentanyl carbamate | Metabolite | CS-O-48326 | 1465-20-9 | Enquire |
Impurity
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 2'-Fluoro ortho-fluorofentanyl | Impurity | CS-O-48267 | 2748343-88-4 | Enquire |
| 3-Methylthiofentanyl | Impurity | CS-O-48272 | 86052-04-2 | Enquire |
| beta-Hydroxyfentanyl | Impurity | CS-EO-03556 | 78995-10-5 | Enquire |
| Fentanyl Impurity A | Impurity | CS-SN-00123 | 1233011-07-8 | Enquire |
| Furanyl fentanyl (hydrochloride) | Impurity | CS-O-53035 | 101365-56-4 | Enquire |
| N-Methyl fentanyl | Impurity | CS-O-58431 | 22261-99-0 | Enquire |
| Norfentanyl formate | Impurity | CS-O-58433 | ---- | Enquire |
| N-phenyl-1-(2-phenylethyl) piperidin-4-amine | Impurity | CS-O-31567 | 21409-26-7 | In Stock |
| Phenacyl Fentanyl HCl | Impurity | CS-O-56358 | 1796-40-3 (Freebase) | In Stock |
| Thiofuranyl fentanyl | Impurity | CS-O-48232 | 2306823-38-9 | In Stock |
| 1-Phenethylpyridinium | Impurity | CS-O-40527 | Not Available | Enquire |
| N-Phenylpiperidin-4-amine | Impurity | CS-M-25712 | 23056-29-3 | Enquire |
Intermediate
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| (2-Bromoethyl)benzene | Intermediate | CS-T-08207 | 103-63-9 | In Stock |
Nitrosamine
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| N-(2-fluorophenyl)-1-nitrosopiperidin-4-amine | Nitrosamine | CS-BX-02966 | ---- | Enquire |
| N-Nitroso 4-(p-toluidino)piperidine | Nitrosamine | CS-O-52833 | Not Available | In Stock |
| N-Nitroso Butyryl Fentanyl Impurity | Nitrosamine | CS-O-52850 | Not Available | In Stock |
| N-Nitroso Fentanyl EP Impurity B | Nitrosamine | CS-EO-02655 | ---- | In Stock |
| N-Nitroso Fentanyl EP Impurity D | Nitrosamine | CS-EO-02595 | 1184873-14-0 | In Stock |
| N-Nitroso Fentanyl EP Impurity J | Nitrosamine | CS-EO-02594 | 1184873-13-9 | Enquire |
| N-Nitroso Fentanyl ethanone intermediate | Nitrosamine | CS-O-54633 | ---- | In Stock |
| N-Nitroso Fentanyl Impurity 1 | Nitrosamine | CS-EO-02652 | Not Available | Enquire |
| N-Nitroso Fentanyl Impurity 2 (Mixture of Isomers) | Nitrosamine | CS-EO-02653 | ---- | In Stock |
| N-Nitroso Fentanyl Impurity 3(Mixture of isomers) | Nitrosamine | CS-EO-02654 | ---- | In Stock |
| N-Nitroso-2-Fluoro propionyl fentanyl impurity | Nitrosamine | CS-O-52846 | Not Available | In Stock |
| N-Nitroso-4-Methoxy Fentanyl analogue | Nitrosamine | CS-O-52836 | Not Available | Discontinued |
| N-Nitroso-4-Methoxybutyrl Fentanyl analogue | Nitrosamine | CS-O-52835 | Not Available | In Stock |
| N-Nitroso-Para-Fluoro furanyl fentanyl impurity | Nitrosamine | CS-O-52847 | ---- | Enquire |
| N-Nitroso-p-Methyl propionyl fentanyl impurity | Nitrosamine | CS-O-52837 | ---- | In Stock |
Steroids
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 4-Methoxybutyrfentanyl | Steroids | CS-O-48263 | 2088842-68-4 | Enquire |
| Phenyl fentanyl | Steroids | CS-O-48255 | 2309383-15-9 | Enquire |
| p-Methylfentanyl | Steroids | CS-O-48261 | 1838-67-1 | Enquire |
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 |