Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Zafirlukast, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Zafirlukast 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 Zafirlukast-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 Zafirlukast-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.
Zafirlukast Related Compounds
Stable Isotopes
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 2-[2-Methoxy-4-[[[(2-methylphenyl)sulfonyl]amino]carbonyl]ph... | Stable Isotopes | CS-T-100062 | Not Available | Enquire |
| 2-Chloro Zafirlukast-d7 | Stable Isotopes | CS-T-100619 | Not Available | Enquire |
| Decyclopentyl Zafirlukast D3 Methyl Ester | Stable Isotopes | CS-O-13940 | 1795011-90-3 | Enquire |
| Zafirlukast D7 | Stable Isotopes | CS-P-00089 | 1217174-18-9 | Enquire |
| Zafirlukast Impurity D-d7 | Stable Isotopes | CS-T-99725 | Not Available | Enquire |
| Zafirlukast Impurity F-d7 | Stable Isotopes | CS-T-99724 | Not Available | Enquire |
| Zafirlukast Impurity G-d7 | Stable Isotopes | CS-T-99723 | Not Available | Enquire |
| Zafirlukast Impurity H-d11 | Stable Isotopes | CS-T-99722 | Not Available | Enquire |
| Zafirlukast m-Tolyl Isomer-D7 | Stable Isotopes | CS-O-37436 | 1794760-52-3 | Enquire |
| Zafirlukast p-Tolyl Isomer-D7 | Stable Isotopes | CS-O-37435 | 1794886-13-7 | Enquire |
| Zafirlukast-13C | Stable Isotopes | CS-O-14648 | 107753-78-6(Unlabeled) | Enquire |
| Zafirlukast-13C-D6 | Stable Isotopes | CS-EO-02495 | Not Available | Enquire |
API Standards
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Zafirlukast | API Standards | CS-O-11222 | 107753-78-6 | In Stock |
Metabolites
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Zafirlukast M1 Metabolite | Metabolites | CS-T-94187 | 219583-10-5 | Enquire |
Impurities
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 2-(3-chloro-1-(naphthalen-1-yloxy)propyl)thiophene | Impurities | CS-O-44302 | 1104890-93-8 | Enquire |
| 2-[2-Methoxy-4-[[[(2-methylphenyl)sulfonyl]amino]carbonyl]ph... | Impurities | CS-T-79908 | 1160235-26-6 | Enquire |
| 2-Chloro Zafirlukast | Impurities | CS-T-93815 | Not Available | Enquire |
| 4-[[5-cyclopentyloxycarbonylamino-2-[(3-methoxy benzoic acid... | Impurities | CS-O-44299 | Not Available | Enquire |
| 4-[[5-cyclopentyloxycarbonylamino-2-[(3-methoxy benzoic acid... | Impurities | CS-O-44301 | Not Available | Enquire |
| 4-[bis-(5-amino-1-methyl indol-3-yl)methyl]-3-methoxy benzoi... | Impurities | CS-O-44326 | Not Available | Enquire |
| 4-[Bis-(5-cyclopentyloxy carbonyl amino-1-methyl indol-3-yl)... | Impurities | CS-O-44300 | Not Available | Enquire |
| 4-[Bis-(5-cyclopentyloxy carbonyl amino-1-methyl indol-3-yl)... | Impurities | CS-O-44293 | Not Available | Enquire |
| dimethyl 4,4'-(1-(5-amino-1-methyl-1H-indol-3-yl)ethane-1,2-... | Impurities | CS-O-44327 | Not Available | Enquire |
| methyl 4-(5-nitro-1-methyl indol-3-yl-methyl)-3-methoxy benz... | Impurities | CS-O-44325 | Not Available | Enquire |
| Methyl N-(1-methyl-1H-indol-5-yl)carbamate | Impurities | CS-O-44292 | 1795185-03-3 | Enquire |
| Zafirlukast Impurity D | Impurities | CS-T-87487 | 1160235-24-4 | Enquire |
| Zafirlukast Impurity F | Impurities | CS-O-37434 | 1160235-28-8 | Enquire |
| Zafirlukast Impurity G | Impurities | CS-O-37433 | 1391990-94-5 | Enquire |
| Zafirlukast Related Compound C | Impurities | CS-T-14678 | 1159195-67-1 | Enquire |
| Zafirlukast Related Compound D | Impurities | CS-T-46710 | 1159195-69-3 | Enquire |
| Zafirlukast Related Compound E | Impurities | CS-T-46712 | 1159195-70-6 | Enquire |
Intermediates
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Methyl 4-[(5-Amino-1-methylindol-3-yl)methyl]-3-methoxybenzo... | Intermediates | CS-T-81634 | 107754-14-3 | Enquire |