Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Chloroquine, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Chloroquine 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 Chloroquine-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 Chloroquine-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.
Chloroquine Related Compounds
Stable Isotopes
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| (R)-(-)-Hydroxy Chloroquine-d4 Diphosphate | Stable Isotopes | CS-T-97448 | 158749-75-8(Unlabelled) | Enquire |
| (R)-(-)-Hydroxy Chloroquine-d5 Diphosphate | Stable Isotopes | CS-T-97447 | Not Available | Enquire |
| (S)-(+)-Hydroxy Chloroquine-d4 Diphosphate | Stable Isotopes | CS-T-97446 | Not Available | Enquire |
| (S)-(+)-Hydroxy Chloroquine-d5 Diphosphate | Stable Isotopes | CS-T-97445 | 158749-76-9(Unlabelled) | Enquire |
| Chloroquine d5 | Stable Isotopes | CS-O-47498 | Not Available | Enquire |
| Chloroquine D5 Diphosphate | Stable Isotopes | CS-O-13033 | 1854126-42-3 | Enquire |
| Hydroxy Chloroquine-d4 Sulfate | Stable Isotopes | CS-O-02972 | 1216432-56-2 | In Stock |
| HYDROXYCHLOROQUINE DIOXALATE SALT | Stable Isotopes | CS-SN-00042 | 118-42-3(free base) | Enquire |
| Hydroxychloroquine Sulphate D3 | Stable Isotopes | CS-O-39677 | Not Available | Enquire |
| Hydroxychloroquine-d4 | Stable Isotopes | CS-EO-02368 | 1216432-55-1 | Enquire |
| Hydroxychloroquine-D4 (ethan-1,1,2,2-d4-1-ol) Sulfate | Stable Isotopes | CS-O-35300 | 1854126-45-6 | Enquire |
| Hydroxychloroquine-d4 O-Sulfate | Stable Isotopes | CS-T-99222 | Not Available | Enquire |
| N-Didestethyl Chloroquine-d4 Phthalimide | Stable Isotopes | CS-EO-02535 | Not Available | Enquire |
| Chloroquine D4 | Stable Isotopes | CS-O-35677 | 1246815-14-4 | Enquire |
| Chloroquine diphosphate salt D10 | Stable Isotopes | CS-CX-00227 | 1261396-19-3 | Enquire |
| Chloroquine-d4 Phosphate Salt | Stable Isotopes | CS-T-93834 | 1246815-14-4 | In Stock |
| Desethyl Chloroquine D4 | Stable Isotopes | CS-T-52089 | 1189971-72-9 | Enquire |
| Desethyl chloroquine-D5 diphosphate salt | Stable Isotopes | CS-O-14936 | 1261397-17-4 | Enquire |
| Desethyl hydroxychloroquine-d4 | Stable Isotopes | CS-O-37600 | 1854126-47-8 | Enquire |
| Desethylchloroquine diphosphate salt 13C6 | Stable Isotopes | CS-EK-00086 | 247912-76-1 unlabeled | Enquire |
| Desethylchloroquine-D5 | Stable Isotopes | CS-O-14940 | 1261392-69-1 | Enquire |
| Didesethyl Chloroquine D4 | Stable Isotopes | CS-T-52738 | 1215797-41-3 | Enquire |
| Didesethyl Chloroquine Hydroxyacetamide-d4 | Stable Isotopes | CS-T-52740 | 1216956-86-3 | Enquire |
| Hydroxychloroquine-D4 O-Sulfate Sodium Salt | Stable Isotopes | CS-O-34967 | 103152-84-7 (free base, Unlabeled) | Enquire |
| Hydroxychloroquine-D5 sulfate | Stable Isotopes | CS-O-14939 | 747-36-4 Unlabeled | Enquire |
| N-Acetyl Desethyl Chloroquine-d4 | Stable Isotopes | CS-T-64576 | 1216619-20-3 | Enquire |
| R-Hydroxychloroquine-d4 | Stable Isotopes | CS-O-13036 | 137433-23-9(Unlabeld) | Enquire |
| S-Hydroxychloroquine-d4 | Stable Isotopes | CS-O-13034 | 137433-24-0(Unlabeled) | Enquire |
API
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Chloroquine | API | CS-CX-00225 | 54-05-7 | In Stock |
| Chloroquine diphosphate | API | CS-O-06225 | 50-63-5 | In Stock |
| Chloroquine Diphosphate Hydrate | API | CS-EO-03418 | 29791-25-1 | Enquire |
| Chloroquine Sulfate | API | CS-O-01092 | 132-73-0 | In Stock |
| Hydroxychloroquine | API | CS-O-15317 | 118-42-3 | In Stock |
| Hydroxychloroquine sulphate | API | CS-O-01630 | 747-36-4 | In Stock |
Metabolite
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Chloroquine analog | Metabolite | CS-CX-00226 | 85-10-9 | Enquire |
| Chloroquine Dihydrochloride | Metabolite | CS-O-13032 | 3545-67-3 | Enquire |
| Desethylchloroquine diphosphate salt | Metabolite | CS-EK-00177 | 247912-76-1 | Enquire |
| Didesethyl Chloroquine | Metabolite | CS-T-17957 | 4298-14-0 | Enquire |
| Hydroxychloroquine O-Sulfate Sodium Salt | Metabolite | CS-T-93694 | 103152-84-7 | Enquire |
Impurity
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Chloroquine N-oxide | Impurity | CS-O-56718 | 68121-48-2 | Enquire |
| de-ethylhydroxychloroquine sulphate | Impurity | CS-O-47358 | Not Available | Enquire |
| Hydroxychloroquine Dimer | Impurity | CS-O-35932 | 2732209-42-4 | Enquire |
| Hydroxychloroquine EP Impurity C | Impurity | CS-T-13091 | 4298-15-1 | In Stock |
| Hydroxychloroquine EP impurity F Hydrochloride | Impurity | CS-EO-03610 | 6281-58-9 (Freebase) | Enquire |
| Hydroxychloroquine Impurity 18 | Impurity | CS-O-59904 | ---- | Enquire |
| Hydroxychloroquine impurity 2 | Impurity | CS-O-46846 | Not Available | Enquire |
| Hydroxychloroquine N-Oxide Impurity | Impurity | CS-O-15325 | 1449223-88-4 | In Stock |
| Hydroxychloroquine O-Sulfate Sulphate salt | Impurity | CS-O-52146 | Not Available | Enquire |
| Hydroxychloroquine sulfate Impurity 59 | Impurity | CS-O-59668 | 873969-89-2 | Enquire |
| Hydroxychloroquine sulfate Impurity 69 | Impurity | CS-O-59651 | 500590-08-9 | Enquire |
| N-Desethyl Chloroquine Hydrochloride | Impurity | CS-T-15919 | 4298-11-7 | In Stock |
| 4-Amino-N-ethyl-(2-hydroxyethyl)-pentylamine | Impurity | CS-U-00058 | 69559-11-1 | Enquire |
| Bidesethylchloroquine | Impurity | CS-O-37601 | Not Available | Enquire |
| Chloroquine Related Compound G | Impurity | CS-P-08478 | 68121-48-2 (free base) | Enquire |
| DesethylHydroxy Chloroquine HCl | Impurity | CS-O-40581 | 159358-29-9 | Enquire |
| Didesethyl Chloroquine Hydroxyacetamide | Impurity | CS-T-52739 | 1159977-30-6 | Enquire |
| Hydroxychloroquine Dimer Di HCl | Impurity | CS-EO-00513 | 2732209-42-4 (Freebase) | Enquire |
| Hydroxychloroquine EP Impurity F HCl | Impurity | CS-EO-01561 | ---- | Enquire |
| Hydroxychloroquine sulfate impurity E | Impurity | CS-T-51045 | 10500-64-8 | Enquire |
Intermediate
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Desethyl Chloroquine | Intermediate | CS-T-15710 | 1476-52-4 | In Stock |
Glucuronide
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Hydroxychloroquine-O-Beta-D-Glucuronide | Glucuronide | CS-O-45777 | 2439157-39-6 | Enquire |
Nitrosamine
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| N-(7-chloroquinolin-4-yl)-N-(5-(2-hydroxyethylamino)pentan-2... | Nitrosamine | CS-O-59823 | ---- | Enquire |
| N-N-Dinitroso Hydroxychloroquine EP Impurity C | Nitrosamine | CS-O-59824 | ---- | Enquire |
| N-Nitroso Chloroquine | Nitrosamine | CS-O-38897 | Not Available | Enquire |
| N-Nitroso Desethyl Chloroquine | Nitrosamine | CS-O-41379 | Not Available | In Stock |
| N-Nitroso Hydroxychloroquine EP Impurity B | Nitrosamine | CS-O-56923 | ---- | Enquire |
| N-Nitroso Hydroxychloroquine EP Impurity C | Nitrosamine | CS-O-51701 | ---- | Enquire |
| N-Nitroso Hydroxychloroquine EP Impurity D | Nitrosamine | CS-O-56920 | ---- | Enquire |
| N-Nitroso Hydroxychloroquine Impurity 18 | Nitrosamine | CS-O-56922 | ---- | Enquire |
| N-Nitroso Hydroxychloroquine-O-Acetate | Nitrosamine | CS-O-56921 | ---- | Enquire |
| N-Nitroso-HYDROXYCHLOROQUINE | Nitrosamine | CS-O-38499 | Not Available | In Stock |
Secondary Standards
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Chloroquine phosphate | Secondary Standards | CS-SS-24275-1GM | 50-63-5 | Enquire |
| Chloroquine Related Compound A | Secondary Standards | CS-SS-25272-50MG | 86-98-6 | Enquire |
| Chloroquine Related Compound D | Secondary Standards | CS-SS-25965-40MG | 1476-52-4 | Enquire |
| Chloroquine Related Compound E | Secondary Standards | CS-SS-25966-40MG | Not Available | Enquire |
| Chloroquine Related Compound G | Secondary Standards | CS-SS-25670-40MG | Not Available | Enquire |
| Hydroxychloroquine Sulfate | Secondary Standards | CS-SS-24730-1GM | 747-36-4 | Enquire |
Analytical Standard
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| N-Nitroso Chloroquine | Analytical Standard | CS-O-38897-10MG | Not Available | Enquire |
| N-nitroso-chloroquine-100 PPM in Acetonitrile | Analytical Standard | CS-O-38897-1.5ML | Not Available | Enquire |
| N-Nitroso-HYDROXYCHLOROQUINE | Analytical Standard | CS-O-38499-10MG | Not Available | Enquire |
| N-nitroso-hydroxychloroquine-100 PPM in Acetonitrile | Analytical Standard | CS-O-38499-1.5ML | Not Available | Enquire |
Chiral
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| R(-)-Hydroxy Chloroquine | Chiral | CS-O-14373 | 137433-23-9 | Enquire |
| S(+)-Hydroxy Chloroquine | Chiral | CS-O-14374 | 137433-24-0 | Enquire |