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-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-d10 | Stable Isotopes | CS-SN-00035 | Not Available | Enquire |
| Fexofenadine-d10 Hydrochloride | Stable Isotopes | CS-T-54704 | 1215821-44-5 | Enquire |
| Fexofenadine-d10 Methyl Ester | Stable Isotopes | CS-T-100306 | Not Available | Enquire |
| 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 |
| meta-Fexofenadine-D6 | Stable Isotopes | CS-T-100307 | 479035-75-1(Unlabeled) | Enquire |
| 1-Dehydroxy-1-dehyro-fexofenadine-d6 Methyl Ester | Stable Isotopes | CS-T-51813 | 1795031-46-7 | Enquire |
| Fexofenadine hydrochloride 13C12 | Stable Isotopes | CS-EK-02927 | 153439-40-8 unlabeled | Enquire |
| Fexofenadine-D6 Methyl Ester | Stable Isotopes | CS-T-54706 | 1286458-00-1 | Enquire |
API
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Azacyclonol | API | CS-O-00907 | 115-46-8 | In Stock |
| Fexofenadine | API | CS-T-54702 | 83799-24-0 | In Stock |
| Fexofenadine Dihydrate | API | CS-O-47851 | 885946-90-7 | Enquire |
| Fexofenadine Hydrochloride | API | CS-O-00610 | 153439-40-8 | In Stock |
Impurity
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Fexafenadine EP Impurity B | Impurity | CS-T-54703 | 479035-75-1 | In Stock |
| Fexofenadine EP Impurity A | Impurity | CS-O-03405 | 76811-98-8 | In Stock |
| Fexofenadine EP Impurity C | Impurity | CS-O-10070 | 185066-37-9 | In Stock |
| Fexofenadine EP Impurity G | Impurity | CS-T-53856 | 1187954-57-9 | Enquire |
| Fexofenadine Hydrochloride EP Impurity D | Impurity | CS-T-54705 | 154825-96-4 | In Stock |
| Fexofenadine Impurity 37 | Impurity | CS-P-09159 | 24911-30-6 | Enquire |
| Fexofenadine Impurity 4 | Impurity | CS-O-58091 | 1187954-56-8 | Enquire |
| Fexofenadine N-Oxide | Impurity | CS-T-94016 | 1422515-52-3 | In Stock |
| Fexofenadine Related Compound B | Impurity | CS-O-38699 | 479035-75-1 (Freebase) | Enquire |
| Fexofenadine Related Compound C | Impurity | CS-BX-01373 | 185066-37-9 (free base) | In Stock |
| Fexofenadine Tertiary dehydrated Impurity | Impurity | CS-O-42915 | 1347311-10-7 | Enquire |
| FEXOFENADINE EP IMPURITY A - HCl | Impurity | CS-O-38203 | 153439-43-1 | Enquire |
| Fexofenadine HCl Impurity L | Impurity | CS-O-33033 | Not Available | Enquire |
| Fexofenadine Hydrochloride EP Impurity F | Impurity | CS-O-14191 | 185066-33-5 | Enquire |
| Fexofenadine hydrochloride USP Impurity A | Impurity | CS-EN-00073 | Not Available | Enquire |
| Fexofenadine P-Ethyl Ester | Impurity | CS-EO-00531 | 174483-06-8 | Enquire |
| meta-Fexofenadine Hydrochloride | Impurity | CS-T-93671 | 479035-75-1 (Free Base) | Enquire |
| methyl 2-(3-(4-chlorobutanoyl)phenyl)-2-methylpropanoate | Impurity | CS-O-15949 | 343255-26-5 | Enquire |
| methyl 2-(4-(4-hydroxybutanoyl)phenyl)-2-methylpropanoate | Impurity | CS-O-15948 | 394222-30-1 | Enquire |
Intermediate
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 4-(4-Chloro-1-oxobutyl)-α,α-dimethylbenzeneacetic Acid Methy... | Intermediate | CS-T-12201 | 154477-54-0 | In Stock |
| Alpha α Dimethyl Phenyl Acetic Acid Methyl Ester | Intermediate | CS-CO-00002 | 57625-74-8 | 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 |
| cyclopropyl(4-(1-hydroxy-2-methylpropan-2-yl)phenyl)methanon... | Fine Chemicals | CS-O-38671 | 169280-26-6 | Enquire |
Secondary Standards
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Fexofenadine | Secondary Standards | CS-SS-25502 | 885946-90-7 | Enquire |
| Fexofenadine HCl | Secondary Standards | CS-SS-24640-1GM | 153439-40-8 | Enquire |
| Fexofenadine HCl | Secondary Standards | CS-SS-24640 | 153439-40-8 | Enquire |
| Fexofenadine methyl ester | Secondary Standards | CS-SS-26451-50MG | 154825-96-4 | Enquire |
| Fexofenadine Related Compound A | Secondary Standards | CS-SS-25288-50MG | 76811-98-8 | Enquire |
Analytical Standard
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Fexofenadine-d6-AR Grade | Analytical Standard | CS-O-02714-10MG | 548783-71-7 | Enquire |
| Fexofenadine-d6-AR Grade-10 ppm/ACN | Analytical Standard | CS-O-02714-1ML | 548783-71-7 | Enquire |