Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Azelastine, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Azelastine 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 Azelastine-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 Azelastine-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.
Azelastine Related Compounds
Stable Isotopes
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Azelastine-d3 | Stable Isotopes | CS-TA-21031 | 758637-88-6 | Enquire |
| Azelastine-d4 Hydrochloride | Stable Isotopes | CS-O-03081 | 1228258-95-4 (Free base) | In Stock |
| N-desmethyl Azelastine-d4 | Stable Isotopes | CS-O-06428 | 2747914-87-8 | In Stock |
| Azelastine 13C,d3 | Stable Isotopes | CS-T-48465 | 1217019-80-1 | Enquire |
| Azelastine 13C,d3 N-Oxide | Stable Isotopes | CS-T-48467 | 1346602-76-3 | Enquire |
| Azelastine D4 | Stable Isotopes | CS-O-14396 | 1228258-93-2 | Enquire |
API
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| (R)-Azelastine Hydrochloride | API | CS-T-48463 | 153408-28-7 | In Stock |
| Azelastine Hydrochloride | API | CS-O-10236 | 79307-93-0 | In Stock |
Metabolite
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| N-Desmethyl Azelastine | Metabolite | CS-O-06068 | 47491-38-3 | In Stock |
Impurity
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| (R)-Azelastine N-Oxide (Mixture of Diastereomers) | Impurity | CS-EO-02226 | 1346617-18-2 | In Stock |
| (S)-Azelastine N-Oxide (Mixture of Diastereomers) | Impurity | CS-EO-02227 | 1346617-06-8 | In Stock |
| 3-(4-Chlorobenzal)phthalide | Impurity | CS-T-11185 | 20526-97-0 | In Stock |
| Azelastine 2-Chloro Isomer | Impurity | CS-O-47386 | 752922-66-0 | In Stock |
| Azelastine 3-Chloro-Isomer | Impurity | CS-T-50853 | 37933-01-0 | In Stock |
| Azelastine 3-Chloro-Isomer HCl | Impurity | CS-EO-03362 | 37933-01-0 (Freebase) | Enquire |
| Azelastine EP Impurity A | Impurity | CS-M-43257 | 613-94-5 | In Stock |
| Azelastine EP Impurity B | Impurity | CS-O-13790 | 110406-94-5 | In Stock |
| Azelastine EP Impurity B | Impurity | CS-T-33178 | 117078-69-0 | Enquire |
| Azelastine EP Impurity C | Impurity | CS-T-12256 | 53242-76-5 | In Stock |
| Azelastine 2-chloro isomer hydrochloride | Impurity | CS-O-36212 | 752922-66-0 (free base) | Enquire |
| Azelastine 3-chloro isomer hydrochloride | Impurity | CS-O-36213 | 37933-01-0 (Free base) | Enquire |
| Azelastine 5-Member-Cyclic-Isomer HCl | Impurity | CS-EO-00473 | 117078-70-3 | Enquire |
| Azelastine EP Impurity D | Impurity | CS-T-12336 | 53242-88-9 | Enquire |
| Azelastine EP Impurity E | Impurity | CS-O-15175 | 105279-16-1 | Enquire |
Intermediate
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 1(2H)-Phthalazinone | Intermediate | CS-M-42954 | 119-39-1 | In Stock |
| Azelastine Related Compound F | Intermediate | CS-T-48466 | 640279-88-5 | In Stock |
Fine Chemicals
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Phthalazine | Fine Chemicals | CS-T-39863 | 253-52-1 | In Stock |
| 1-Methylazepan-4-one hydrochloride | Fine Chemicals | CS-MM-00020 | 19869-42-2 | Enquire |
Nitrosamine
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| N-Nitroso Azelastine EP Impurity A | Nitrosamine | CS-EO-02626 | Not Available | Enquire |
| N-Nitroso Azelastine EP Impurity B | Nitrosamine | CS-EO-02627 | ---- | In Stock |
| N-Nitroso Desmethyl Azelastine | Nitrosamine | CS-O-40125 | Not Available | In Stock |
Secondary Standards
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Azelastine Hydrochloride | Secondary Standards | CS-SS-24603-1GM | 79307-93-0 | Enquire |
| Azelastine Related Compound D | Secondary Standards | CS-SS-25592-50MG | 53242-88-9 | Enquire |
| Azelastine Related Compound E | Secondary Standards | CS-SS-25593-50MG | 20526-97-0 | Enquire |
Therapeutic
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| (S)-Azelastine Hydrochloride | Therapeutic | CS-T-48464 | 153408-27-6 | In Stock |