Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Quercetin, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Quercetin 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 Quercetin-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 Quercetin-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.
Quercetin Related Compounds
Stable Isotopes
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 3’,4’-Di-O-Methoxy 3,7-Bis(benzyloxy) Quercetin-d6 | Stable Isotopes | CS-T-101470 | Not Available | Enquire |
| 3'-O-Methyl Quercetin 3-O-?-D-Glucuronide-d3 | Stable Isotopes | CS-T-98427 | Not Available | Enquire |
| 3-O-Methyl-d3 Quercetin | Stable Isotopes | CS-T-101027 | Not Available | Enquire |
| 5-O-Methyl-d3 Quercetin | Stable Isotopes | CS-T-101026 | Not Available | Enquire |
| 7-O-Methyl-d3 Quercetin | Stable Isotopes | CS-T-101025 | Not Available | Enquire |
| Quercetin 13C15 | Stable Isotopes | CS-EK-01203 | 1261398-41-7 | Enquire |
| Quercetin 13C6 | Stable Isotopes | CS-EK-02098 | 1261398-19-9 | Enquire |
| Quercetin 3-O-β-xyloside-d3 | Stable Isotopes | CS-T-98816 | Not Available | Enquire |
| Quercetin 4'-Glucoside-d3 | Stable Isotopes | CS-T-93974 | 20229-56-5 (Unlabeled) | Enquire |
| Quercetin D5 | Stable Isotopes | CS-O-47476 | 263711-78-0 | Enquire |
| Quercetin-[13C3] | Stable Isotopes | CS-I-00533 | Not Available | Enquire |
| Quercetin-3-O-beta-D-glucuronide 13C6 | Stable Isotopes | CS-EK-02138 | 22688-79-5 unlabeled | Enquire |
| Quercetin-d3 | Stable Isotopes | CS-T-61004 | 263711-79-1 | In Stock |
API Standards
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Quercetin | API Standards | CS-O-02217 | 117-39-5 | In Stock |
| Quercetin dihydrate | API Standards | CS-O-11728 | 6151-25-3 | In Stock |
| Quercetin Hydrate | API Standards | CS-DE-00105 | 849061-97-8 | In Stock |
Metabolites
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Quercetin-7-O-β-D-glucopyranoside | Metabolites | CS-BP-00012 | 491-50-9 | Enquire |
Impurities
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 3-O-Methylquercetin tetraacetate | Impurities | CS-BT-00123 | 1486-69-7 | Enquire |
| cis-Dihydroquercetin | Impurities | CS-T-91370 | 114761-89-6 | Enquire |
| Quercetin 3-(6-O-galloylgalactoside) | Impurities | CS-E-02790 | 53171-28-1 | Enquire |
| Quercetin 3,4'-Diglucoside | Impurities | CS-T-61002 | 29125-80-2 | Enquire |
| Quercetin 3-O-β-xyloside | Impurities | CS-T-61009 | 549-32-6 | Enquire |
| Quercetin 3-Sulfate Potassium Salt | Impurities | CS-T-61008 | 121241-74-5 | Enquire |
| Quercetin 4'-Glucoside | Impurities | CS-T-61003 | 20229-56-5 | In Stock |
Intermediates
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 3',7-Di-O-methyl Quercetin | Intermediates | CS-T-20594 | 552-54-5 | Enquire |
| 3'-O-Methyl Quercetin | Intermediates | CS-T-34952 | 480-19-3 | In Stock |
| 3-O-Methyl Quercetin | Intermediates | CS-T-34942 | 1486-70-0 | Enquire |
| 5-O-Methyl Quercetin | Intermediates | CS-T-58594 | 529-51-1 | Enquire |
| 7-O-Methyl Quercetin | Intermediates | CS-T-80381 | 90-19-7 | Enquire |
| Isoquercitroside | Intermediates | CS-BO-00008 | 21637-25-2 | In Stock |
| Quercetin 3,3’,4’,5-Tetraacetate | Intermediates | CS-T-85994 | 143631-95-2 | Enquire |
| Quercetin 3,4'-dimethyl ether | Intermediates | CS-N-00528 | 33429-83-3 | Enquire |
| Quercetin 3-O-β-D Glucoside | Intermediates | CS-T-86073 | 482-35-9 | In Stock |
Glucuronides
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 3’-O-Methyl Quercetin 3-O-ß-D-Glucuronide | Glucuronides | CS-T-81172 | 36687-76-0 | Enquire |
| Quercetin 3-glucoside-7-glucuronide | Glucuronides | CS-ED-00024 | Not Available | Enquire |
| Quercetin 7-O-beta-D-Glucuronide | Glucuronides | CS-ED-00648 | 38934-20-2 | Enquire |
| Quercetin-β-O-β-D-Glucuronide | Glucuronides | CS-T-61005 | 22688-79-5 | Enquire |