Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Xanthine, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Xanthine 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 Xanthine-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 Xanthine-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.
Xanthine Related Compounds
Stable Isotopes
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| "1,7-Dimethylxanthine 13C4, 15N3" | Stable Isotopes | CS-R-00542 | Not Available | Enquire |
| "1,7-Dimethylxanthine D6" | Stable Isotopes | CS-O-16235 | 117490-41-2 | Enquire |
| "Hypoxanthine 13C2,15N" | Stable Isotopes | CS-T-56561 | 1246820-04-1 | Enquire |
| [13C]-Hypoxanthine | Stable Isotopes | CS-EK-00467 | 473249-93-3 | Enquire |
| [13C]-Xanthine | Stable Isotopes | CS-EK-00100 | 69-89-6 unlabeled | Enquire |
| 1-(3-carboxypropyl)3,7-dimethyl Xanthine-d6 | Stable Isotopes | CS-BV-00018 | 1246816-64-7 | In Stock |
| 1,7-Dimethylxanthine-d3 | Stable Isotopes | CS-B-00266 | 611-59-6 (unlabeled) | Enquire |
| 3-Methyl-7-(2-butyn-1-yl)-8-[(R)-3-(tertbutyloxycarbonylamin... | Stable Isotopes | CS-T-100051 | Not Available | Enquire |
| 3-Methylxanthine-[13C4,15N3] | Stable Isotopes | CS-I-00528 | 1173018-93-3 | Enquire |
| 5-Amino-3,7-dimethyl Xanthine-d6 | Stable Isotopes | CS-T-100881 | 1185126-58-2 | Enquire |
| 8-Bromo-3-methyl-d3-7-(2-butynyl)-xanthine | Stable Isotopes | CS-T-100730 | Not Available | Enquire |
| 8-Bromoxanthine-15N2,13C | Stable Isotopes | CS-T-100726 | Not Available | Enquire |
| Hypoxanthine 13C3 15N2 | Stable Isotopes | CS-O-15457 | 68-94-0 (Unlabeled) | Enquire |
| Hypoxanthine D3, OD | Stable Isotopes | CS-R-00599 | 98325-49-6 | Enquire |
| Hypoxanthine-13C2,15N (>90%) | Stable Isotopes | CS-T-102275 | 1330265-04-7 | Enquire |
| Paraxanthine-1-methyl-d3 | Stable Isotopes | CS-T-60154 | 188297-90-7 | Enquire |
| Paraxanthine-d3 | Stable Isotopes | CS-T-83931 | 65566-70-3 | Enquire |
| Xanthine 15N2 | Stable Isotopes | CS-O-13466 | 161770-53-2 | Enquire |
| Xanthine-13C15N2 | Stable Isotopes | CS-T-87935 | 1262670-81-4 | Enquire |
API Standards
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Xanthine | API Standards | CS-P-06885 | 69-89-6 | In Stock |
| Xanthine Oxidase | API Standards | CS-EP-00571 | 9002-17-9 | Enquire |
Metabolites
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 1-Methyl Xanthine | Metabolites | CS-O-10032 | 6136-37-4 | In Stock |
Impurities
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| "1-(Ethyl-3-carboxypropyl)-3,7-dimethylxanthine" | Impurities | CS-T-54409 | 83636-88-8 | Enquire |
| "3,7-Dimethyl-1-propargylxanthine" | Impurities | CS-T-53677 | 14114-46-6 | Enquire |
| 1-(5-Ketohexyl)-3-methyl Xanthine | Impurities | CS-T-30335 | 38975-46-1 | Enquire |
| 1-Allyl-3,7-dimethyl-8-p-sulfophenylxanthine | Impurities | CS-T-01687 | 149981-25-9 | Enquire |
| 3-Methyl-7-(5-oxohexyl)-1-propylxanthine | Impurities | CS-T-34650 | 55242-58-5 | Enquire |
| 8-[2-(Diphenylmethoxy)-N-methylethylamino]-1,3-dimethylxanth... | Impurities | CS-T-21002 | 33120-34-2 | Enquire |
| 8-Bromo-7-(2-butyn-1-yl)-3-methylxanthine] | Impurities | CS-O-31413 | 666816-98-4 | In Stock |
| 8-Methylxanthine | Impurities | CS-T-102332 | 17338-96-4 | Enquire |
| N-Nitroso Paraxanthine | Impurities | CS-O-45275 | Not Available | Enquire |
| Temozolomide 2-Azahypoxanthine Impurity | Impurities | CS-O-08269 | 4656-86-4 | In Stock |
Intermediates
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| "1,3,7,8-Tetramethylxanthine" | Intermediates | CS-M-56874 | 832-66-6 | Enquire |
| "1,3-Dibutylxanthine" | Intermediates | CS-T-17372 | 2850-36-4 | Enquire |
| "1,3-Diethyl-8-phenylxanthine" | Intermediates | CS-T-18237 | 75922-48-4 | Enquire |
| "1,3-Dipropyl-7-methylxanthine" | Intermediates | CS-T-21035 | 31542-63-9 | Enquire |
| "1,3-Dipropyl-8-phenylxanthine" | Intermediates | CS-T-21037 | 85872-53-3 | Enquire |
| "3,7-Dimethyl-8-(p-sulfonamidophenyl)xanthine" | Intermediates | CS-T-20611 | 149981-21-5 | Enquire |
| "5-Amino-3,7-dimethylxanthine" | Intermediates | CS-T-02513 | 81281-47-2 | Enquire |
| "8-Cyclopentyl-1,3-dimethylxanthine" | Intermediates | CS-T-13998 | 35873-49-5 | Enquire |
| "8-Cyclopentyl-1,3-dipropylxanthine" | Intermediates | CS-T-14000 | 102146-07-6 | Enquire |
| 1-(3-Carboxypropyl)-3,7-dimethylxanthine | Intermediates | CS-T-50360 | 6493-07-8 | Enquire |
| 1,3-Dipropyl-8-p-sulfophenylxanthine | Intermediates | CS-T-21040 | 89073-57-4 | Enquire |
| 1,3-Dipropylxanthine | Intermediates | CS-T-21045 | 31542-62-8 | Enquire |
| 1-[(4-Methylquinazolin-2-yl)methyl)]-3-methyl-7-(2-butin-1-y... | Intermediates | CS-O-31412 | 853029-57-9 | In Stock |
| 1-Allyl-3,7-dimethyl-8-phenylxanthine | Intermediates | CS-T-01684 | 149981-23-7 | Enquire |
| 1-Allyl-3,7-dimethyl-8-sulfophenylxanthine sodium salt | Intermediates | CS-ED-41191 | 249929-56-4 | Enquire |
| 3-Isobutyl-1-methylxanthine | Intermediates | CS-T-56790 | 28822-58-4 | Enquire |
| 3-Methyl-7-propylxanthine | Intermediates | CS-M-58494 | 55242-64-3 | Enquire |
| 7-Deaza-2-mercapto-hypoxanthine | Intermediates | CS-T-51651 | 67831-84-9 | Enquire |
| 7-Methyl Xanthine | Intermediates | CS-T-35540 | 552-62-5 | Enquire |
| 8-Aminohypoxanthine | Intermediates | CS-T-02833 | 45893-20-7 | Enquire |
| 8-Azaxanthine Monohydrate | Intermediates | CS-T-48462 | 59840-67-4 | Enquire |
| 8-Bromoxanthine | Intermediates | CS-ED-21760 | 10357-68-3 | Enquire |
| 8-Methoxymethyl-1-methyl-3-(2-methylpropyl) Xanthine | Intermediates | CS-T-32554 | 78033-08-6 | Enquire |
| 9-β-D-Arabinofuranosyl-2-fluorohypoxanthine | Intermediates | CS-T-48308 | 83480-48-2 | Enquire |
| Xanthine Amine Congener | Intermediates | CS-T-88127 | 96865-92-8 | Enquire |
Fine Chemicals
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Hypoxanthine | Fine Chemicals | CS-T-56560 | 68-94-0 | In Stock |
Building Blocks
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Hypoxanthine Monosodium | Building Blocks | CS-BX-02541-1KG | 45738-97-4 | In Stock |
| Hypoxanthine monosodium salt | Building Blocks | CS-BX-02541 | 45738-97-4 | Enquire |