Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Fexofenadine, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Fexofenadine 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 Fexofenadine-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 Fexofenadine-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.
Fexofenadine Related Compounds
Stable Isotopes
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| (Decarboxy)-1-Oxo Fexofenadine-d10 Methanol | Stable Isotopes | CS-T-101627 | Not Available | Enquire |
| 1-Dehydroxy-1-dehyro-fexofenadine-d6 Methyl Ester | Stable Isotopes | CS-T-51813 | 1795031-46-7 | Enquire |
| 1-Oxo Fexofenadine-d10 Methyl Ester | Stable Isotopes | CS-T-94328 | 154477-55-1(Unlabelled) | Enquire |
| Decarboxy Fexofenadine-d3 | Stable Isotopes | CS-T-101628 | 185066-37-9(unlabeled) | Enquire |
| Fexofenadine hydrochloride 13C12 | Stable Isotopes | CS-EK-02927 | 153439-40-8 unlabeled | Enquire |
| Fexofenadine-d10 | Stable Isotopes | CS-SN-00035 | Not Available | Enquire |
| Fexofenadine-d10 Hydrochloride | Stable Isotopes | CS-T-54704 | 1215821-44-5 | In Stock |
| Fexofenadine-d6 | Stable Isotopes | CS-O-02714 | 548783-71-7 | In Stock |
| Fexofenadine-d6 Hydrochloride | Stable Isotopes | CS-O-46238 | 548783-71-7 (freebase) | In Stock |
| Fexofenadine-D6 Methyl Ester | Stable Isotopes | CS-T-54706 | 1286458-00-1 | Enquire |
| meta-Fexofenadine-D6 | Stable Isotopes | CS-T-100307 | 479035-75-1(Unlabeled) | Enquire |
API Standards
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Fexofenadine | API Standards | CS-T-54702 | 83799-24-0 | In Stock |
| Fexofenadine Dihydrate | API Standards | CS-O-47851 | 885946-90-7 | Enquire |
| Fexofenadine Hydrochloride | API Standards | CS-O-00610 | 153439-40-8 | In Stock |
Impurities
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Fexafenadine EP Impurity B | Impurities | CS-T-54703 | 479035-75-1 | In Stock |
| Fexofenadine EP Impurity A | Impurities | CS-O-03405 | 76811-98-8 | In Stock |
| FEXOFENADINE EP IMPURITY A - HCl | Impurities | CS-O-38203 | 153439-43-1 | Enquire |
| Fexofenadine EP Impurity C | Impurities | CS-O-10070 | 185066-37-9 | In Stock |
| Fexofenadine EP Impurity G | Impurities | CS-T-53856 | 1187954-57-9 | Enquire |
| Fexofenadine HCl Impurity L | Impurities | CS-O-33033 | Not Available | Enquire |
| Fexofenadine Hydrochloride EP Impurity D | Impurities | CS-T-54705 | 154825-96-4 | In Stock |
| Fexofenadine Hydrochloride EP Impurity F | Impurities | CS-O-14191 | 185066-33-5 | Enquire |
| Fexofenadine hydrochloride USP Impurity A | Impurities | CS-EN-00073 | Not Available | Enquire |
| Fexofenadine Impurity 37 | Impurities | CS-P-09159 | 24911-30-6 | Enquire |
| Fexofenadine Impurity 4 | Impurities | CS-O-58091 | 1187954-56-8 | Enquire |
| Fexofenadine N-Oxide | Impurities | CS-T-94016 | 1422515-52-3 | In Stock |
| Fexofenadine P-Ethyl Ester | Impurities | CS-EO-00531 | 174483-06-8 | Enquire |
| Fexofenadine Related Compound B | Impurities | CS-O-38699 | 479035-75-1 (Freebase) | Enquire |
| Fexofenadine Related Compound C | Impurities | CS-BX-01373 | 185066-37-9 (free base) | In Stock |
| Fexofenadine Tertiary dehydrated Impurity | Impurities | CS-O-42915 | 1347311-10-7 | Enquire |
| meta-Fexofenadine Hydrochloride | Impurities | CS-T-93671 | 479035-75-1 (Free Base) | Enquire |
EP Standards
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Fexofenadine Hydrochloride (Y000789) | EP Standards | CS-EG-01289 | 153439-40-8 | Enquire |
Intermediates
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| (R)-Fexofenadine | Intermediates | CS-T-54700 | 139965-10-9 | Enquire |
| (S)-Fexofenadine | Intermediates | CS-T-54701 | 139965-11-0 | Enquire |
| 1-Oxo Fexofenadine Methyl Ester | Intermediates | CS-T-60073 | 154477-55-1 | Enquire |
| 4-(4-Chloro-1-oxobutyl)-α,α-dimethylbenzeneacetic Acid Methy... | Intermediates | CS-T-12201 | 154477-54-0 | In Stock |
| Piperidine-3-carboxylic acid | Intermediates | CS-M-04562 | 498-95-3 | In Stock |
Fine Chemicals
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Ethyl4-(4-chloro-1-oxobutyl)-a,a-dimethylbenzeneacetate | Fine Chemicals | CS-O-10640 | 76811-97-7 | In Stock |