Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Allopurinol, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Allopurinol 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 Allopurinol-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 Allopurinol-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.
Allopurinol Related Compounds
Stable Isotopes
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Allopurinol-13C,15N2 | Stable Isotopes | CS-O-03343 | 315-30-0 (Unlabeled) | In Stock |
| Allopurinol-13C,15N2, D2 | Stable Isotopes | CS-EO-02398 | 2465-59-0 unlabelled | Enquire |
| Allopurinol-d2 | Stable Isotopes | CS-O-03126 | 916979-34-5 | In Stock |
| Allopurinol 13C4 | Stable Isotopes | CS-O-15455 | 315-30-0(Unlabeled) | Enquire |
| Oxipurinol 13C 15N2 | Stable Isotopes | CS-O-03344 | 1217036-71-9 | Enquire |
API
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Allopurinol | API | CS-O-07146 | 315-30-0 | In Stock |
| Oxypurinol | API | CS-O-02049 | 2465-59-0 | In Stock |
Impurity
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| (Z)-2-cyano-3-morpholinoacrylamide | Impurity | CS-O-46766 | Not Available | Enquire |
| 2-Cyano-3-morpholinoacrylamide | Impurity | CS-O-47831 | 25229-97-4 | Enquire |
| 3-Aminopyrazole-4-carboxamide Hemisulfate | Impurity | CS-O-07140 | 27511-79-1 | In Stock |
| Allopurinol EP Impurity B | Impurity | CS-O-07141 | 22407-20-1 | In Stock |
| Allopurinol EP Impurity C | Impurity | CS-O-07142 | 1346604-13-4 | In Stock |
| Allopurinol EP Impurity D | Impurity | CS-O-07143 | 6994-25-8 | In Stock |
| Allopurinol EP Impurity E | Impurity | CS-O-07144 | 31055-19-3 | In Stock |
| Allopurinol EP Impurity H | Impurity | CS-T-102285 | 321571-07-7 | Enquire |
| Allopurinol Nitrile Hydrochloride Impurity | Impurity | CS-EO-03302 | 478081-97-9 | Enquire |
| Allopurinol Nitrile Impurity | Impurity | CS-O-07145 | 16617-46-2 | In Stock |
| Allopurinol Related compound F | Impurity | CS-T-13617 | 321571-07-7 | In Stock |
| 7N-[1-(2-Carboxy)ethyl]allopurinol | Impurity | CS-T-50319 | 34397-00-7 | Enquire |
| Allopurinol EP Impurity B -Formate salt | Impurity | CS-O-40326 | 22407-20-1 (Free base) | Enquire |
Fine Chemicals
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Hydrazine Hydrate | Fine Chemicals | CS-DB-00093 | 10217-52-4 | In Stock |
Nitrosamine
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| N-Nitroso Allopurinol | Nitrosamine | CS-O-38911 | ---- | Discontinued |
| N-Nitroso Allopurinol impurity 2 | Nitrosamine | CS-O-56987 | ---- | Enquire |
| 7-nitroso-1,7-dihydro-6H-purin-6-one | Nitrosamine | CS-O-42263 | ---- | Enquire |
| 7-nitroso-7H-purin-6-ol | Nitrosamine | CS-O-42262 | ---- | Enquire |
Secondary Standards
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Allopurinol | Secondary Standards | CS-SS-24377-1GM | 315-30-0 | Enquire |
| Allopurinol Related Compound A | Secondary Standards | CS-SS-24931-50MG | 27511-79-1 | Enquire |
| Allopurinol Related Compound B | Secondary Standards | CS-SS-24932-50MG | 22407-20-1 | Enquire |
| Allopurinol Related Compound C | Secondary Standards | CS-SS-24933-50MG | 1346604-13-4 | Enquire |
| Allopurinol Related Compound D | Secondary Standards | CS-SS-24934-50MG | 6994-25-8 | Enquire |
| Allopurinol Related Compound E | Secondary Standards | CS-SS-24935-50MG | 31055-19-3 | Enquire |
| Allopurinol Related Compound F | Secondary Standards | CS-SS-24907-50MG | 321571-07-7 | Enquire |