Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Loratadine, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Loratadine 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 Loratadine-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 Loratadine-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.
Loratadine Related Compounds
Stable Isotopes
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 3-Hydroxy Desloratadine-d4 | Stable Isotopes | CS-TB-66983 | 1246819-99-7 | In Stock |
| 5-Hydroxy Desloratadine-d4 | Stable Isotopes | CS-T-103265 | 117811-12-8 (Unlabelled) | Enquire |
| 6-Hydroxy Desloratadine-d4 | Stable Isotopes | CS-T-103266 | 119410-05-8 (Unlabelled) | Enquire |
| Descarboethoxyloratadine-d6 diacetate | Stable Isotopes | CS-BU-00033 | ---- | Enquire |
| Desloratadine Citric Amide-d4 | Stable Isotopes | CS-T-96818 | 2714410-87-2 | Enquire |
| Desloratadine-d4 | Stable Isotopes | CS-O-10056 | 381727-29-3 | In Stock |
| Desloratadine-d4 (piperidinylidene-3,3,5,5-d4) | Stable Isotopes | CS-C-01294 | 2713301-38-1 | Enquire |
| Desloratadine-d4 N-Carboxylic Acid Methyl Ester | Stable Isotopes | CS-T-100521 | 2732861-63-9 | Enquire |
| Desloratadine-d5 | Stable Isotopes | CS-O-02713 | 1020719-34-9 | Enquire |
| Desloratadine-d5 Hydrochloride | Stable Isotopes | CS-T-100520 | Not Available | Enquire |
| Loratadine-d4 | Stable Isotopes | CS-O-31235 | 381727-27-1 | In Stock |
| Loratadine-d4 (piperidinylidene-3,3,5,5-d4) | Stable Isotopes | CS-C-00782 | 79794-75-5(Unlabelled) | Enquire |
| Loratadine-d4 Epoxide N-Oxide | Stable Isotopes | CS-T-102892 | 1794754-14-5 | Enquire |
| Loratadine-d5 (2,3,4,5,5-d5) | Stable Isotopes | CS-T-102349 | 1020719-57-6 | In Stock |
| Loratadine-d5 (Ethyl-d5) | Stable Isotopes | CS-T-57296 | 1398065-63-8 | In Stock |
| N-Formyl Desloratadine-d4 | Stable Isotopes | CS-T-100283 | 2733538-51-5 | Enquire |
| N-Methyl Desloratadine-d5 | Stable Isotopes | CS-T-100025 | Not Available | Enquire |
| N-Nitroso Desloratadine-d4 | Stable Isotopes | CS-T-93987 | 2733579-31-0 | In Stock |
| 3-Hydroxy Desloratadine D4 Hydrobromide | Stable Isotopes | CS-O-02970 | 119410-08-1(Unlabeled)(Freebase) | Enquire |
| 3-Hydroxy Loratadine-D4 | Stable Isotopes | CS-T-78397 | 1189452-79-6 | Enquire |
| 3-Hydroxydescarboethoxy-Loratadine-D6 | Stable Isotopes | CS-BU-00097 | Not Available | Enquire |
| 3-Methoxy Loratadine-d4 | Stable Isotopes | CS-T-57701 | 1189501-87-8 | Enquire |
| 3-Methoxy-N-methyldesloratadine D4 | Stable Isotopes | CS-T-57737 | 1189445-21-3 | Enquire |
| 5’-[(Desloratadine)methyl] Rupatadine-d8 | Stable Isotopes | CS-T-73540 | 1794669-33-2 | Enquire |
| Desloratadine (2,2,6,6,10)-D5 | Stable Isotopes | CS-O-16050 | 1246819-67-9 | Enquire |
| Desloratadine-d1 N-Oxide | Stable Isotopes | CS-T-74099 | 1794817-18-7 | Enquire |
| Desloratadine-d7 (major) | Stable Isotopes | CS-T-73322 | 1795024-82-6 | Enquire |
| Loratadine 13C6 | Stable Isotopes | CS-EK-00319 | 79794-75-5 unlabeled | Enquire |
API
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Desloratadine Hemisulfate | API | CS-ED-41814 | 731812-06-9 | In Stock |
| Loratadine | API | CS-O-01778 | 79794-75-5 | In Stock |
| Ethyl Isonipecotate | API | CS-T-75354 | 1126-09-6 | Enquire |
Metabolite
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 2-Hydroxymethyl Loratadine | Metabolite | CS-O-07891 | 609806-39-5 | In Stock |
| 4-Hydroxymethyl Loratadine | Metabolite | CS-O-06123 | 609806-40-8 | In Stock |
| 4-Hydroxymethyl Loratadine Hydrochloride | Metabolite | CS-T-93627 | Not Available | In Stock |
| Loratadine N-Oxide | Metabolite | CS-O-05927 | 165739-62-8 | In Stock |
| 3-Hydroxy Desloratadine | Metabolite | CS-O-05859 | 119410-08-1 | Enquire |
| Desmethoxy loratadine | Metabolite | CS-O-05868 | Not Available | Enquire |
Impurity
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 11-Hydroxy-N-methyl Dihydro Loratadine | Impurity | CS-T-55961 | 38089-93-9 | In Stock |
| 3-Hydroxy Loratadine | Impurity | CS-T-56118 | 183483-15-0 | Enquire |
| 5'-[(Desloratadine)methyl] Rupatadine | Impurity | CS-T-52178 | 1224515-72-3 | In Stock |
| 8-Deschloro-8-bromo Desloratadine | Impurity | CS-O-16658 | 117796-50-6 | Enquire |
| Dehydro Loratadine Isomer A | Impurity | CS-EO-02258 | 2470226-18-5 | Enquire |
| Deschloro Loratadine | Impurity | CS-T-88876 | 79779-58-1 | In Stock |
| Deschlorodesloratadine Hydrochloride | Impurity | CS-O-32471 | Not Available | In Stock |
| Desloratadine 11-Hydroxy N-Methyl Impurity | Impurity | CS-EO-03475 | 38089-93-9 (Freebase) | In Stock |
| Desloratadine 11-Hydroxy-N-Methyl Impurity(Mixture of isomer... | Impurity | CS-O-07773 | 38089-93-9 | Enquire |
| Desloratadine Dehydro 11-Hydroxy N-Methyl Impurity | Impurity | CS-O-57149 | 117811-17-3 | In Stock |
| Desloratadine Dehydro 11-Oxo Impurity | Impurity | CS-EO-00141 | 117811-16-2 | In Stock |
| Desloratadine Dehydro N-Methyl Impurity | Impurity | CS-EO-03476 | 117811-18-4 (Freebase) | Enquire |
| Desloratadine EP Impurity A | Impurity | CS-O-07778 | 298220-99-2 | In Stock |
| Desloratadine EP Impurity B | Impurity | CS-O-07779 | 183198-49-4 | In Stock |
| Desloratadine Methanone Hydrochloride Impurity | Impurity | CS-O-54167 | 119770-60-4 | In Stock |
| Desloratadine N-Acetyl Impurity | Impurity | CS-O-07781 | 117796-52-8 | In Stock |
| Desloratadine N-Carboxylic Acid Methyl Ester | Impurity | CS-T-52179 | 165740-03-4 | In Stock |
| Desloratadine N-Formyl Impurity | Impurity | CS-O-07782 | 117810-61-4 | In Stock |
| Desloratadine N-Oxide | Impurity | CS-T-52177 | 169253-26-3 | In Stock |
| Desloratadine Related Compound B | Impurity | CS-O-49209 | 432543-89-0 | Enquire |
| Iso Desloratadine | Impurity | CS-T-56802 | 183198-49-4 | In Stock |
| Loratadine Cyano Impurity | Impurity | CS-O-32400 | 31255-57-9 | In Stock |
| Loratadine EP Impurity A | Impurity | CS-CB-00047 | 133284-74-9 | In Stock |
| Loratadine EP Impurity B | Impurity | CS-T-50635 | 31251-41-9 | In Stock |
| Loratadine EP Impurity E | Impurity | CS-O-03616 | 170727-59-0 | In Stock |
| Loratadine EP Impurity E HCl Salt | Impurity | CS-EO-03662 | 170727-59-0 (Freebase) | Enquire |
| Loratadine EP Impurity F | Impurity | CS-O-14709 | 125743-80-8 | In Stock |
| Loratadine EP Impurity G | Impurity | CS-O-07784 | 38092-89-6 | In Stock |
| Loratadine Impurity 6 | Impurity | CS-P-08433 | 2183453-63-4 | Enquire |
| Loratadine Impurity 9 | Impurity | CS-EO-02742 | 1449295-46-8 | Enquire |
| Loratadine Impurity E | Impurity | CS-T-52591 | 133330-60-6 | Enquire |
| 11-Hydroxy Dihydro Desloratadine | Impurity | CS-T-78424 | 153200-97-6 | Enquire |
| 12-Fluoro Dihydroloratadine | Impurity | CS-P-08431 | 125743-79-5 | Enquire |
| 12-Hydroxy Loratadine | Impurity | CS-P-08432 | Not Available | Enquire |
| 2-(2-oxopyrrolidin-1-yl)butanoic anhydride | Impurity | CS-O-36554 | Not Available | Enquire |
| 2-Chloro Loratadine | Impurity | CS-T-72890 | 165739-64-0 | Enquire |
| 2-Formyl Loratadine | Impurity | CS-T-55044 | 1076198-15-6 | Enquire |
| 2-Methoxycarbonyl Loratadine | Impurity | CS-T-57646 | 860010-37-3 | Enquire |
| 3-Methoxy Desloratadine | Impurity | CS-T-57668 | 165739-63-9 | Enquire |
| 4-Chloro Loratadine | Impurity | CS-T-50704 | 165739-83-3 | Enquire |
| 4-Formyl Loratadine | Impurity | CS-T-55045 | 1076198-16-7 | Enquire |
| 8-Dechloro-10-chloro Desloratadine | Impurity | CS-T-73941 | 1346600-61-0 | Enquire |
| 8-Dechloro-10-chloro Loratadine | Impurity | CS-O-10168 | 1346605-16-0 | Enquire |
| 8-Dechloro-10-chloro-N-methyl Desloratadine | Impurity | CS-T-73184 | 38092-90-9 | Enquire |
| 8-Dechloro-7-chloro Desloratadine | Impurity | CS-T-73730 | 1346601-53-3 | Enquire |
| 8-Dechloro-7-chloro Loratadine | Impurity | CS-O-10169 | 1346602-19-4 | Enquire |
| 8-Dechloro-7-chloro-N-methyl Desloratadine | Impurity | CS-T-73250 | 1346600-30-3 | Enquire |
| 8-Dechloro-9-chloro Desloratadine | Impurity | CS-T-51687 | 117811-13-9 | Enquire |
| 8-Dechloro-9-chloro Loratadine | Impurity | CS-T-51688 | 109537-11-3 | Enquire |
| 8-Dechloro-9-chloro-N-methyl Desloratadine | Impurity | CS-T-51689 | 38092-88-5 | Enquire |
| 8-Deschloro-8-bromo Loratadine | Impurity | CS-T-88604 | 130642-60-3 | Enquire |
| Dehydro Desloratadine | Impurity | CS-T-50913 | 117811-20-8 | Enquire |
| Desloratadine 8-Bromo-11-Hydroxy-N-Methyl Impurity | Impurity | CS-O-07775 | Not Available | Enquire |
| Desloratadine 8-Bromo-11-Oxo Impurity | Impurity | CS-O-07776 | 143540-56-1 | Enquire |
| Desloratadine Citric Amide | Impurity | CS-T-73339 | 1797131-43-1 | Enquire |
| Desloratadine Epoxide | Impurity | CS-T-73103 | 1346604-23-6 | Enquire |
| DESLORATADINE FOR SYSTEMSUITABILITY CRS (CONTANING IMPURITIE... | Impurity | CS-O-54438 | ---- | Enquire |
| Desloratadine N-Hydroxy Impurity | Impurity | CS-O-07783 | 1193725-73-3 | Enquire |
| Ethyl 2-(2-oxopyrrolidin-1-yl) butanoyl carbonate | Impurity | CS-O-36553 | Not Available | Enquire |
| Loratadine Impurity 15 | Impurity | CS-O-37177 | 125743-81-9 | Enquire |
| Loratadine LN8-bromo | Impurity | CS-O-39974 | 130642-51-2 | Enquire |
| N-Methyl Iso Desloratadine | Impurity | CS-T-58300 | 183198-48-3 | Enquire |
Intermediate
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 5,6-Dehydro-N-methyl Desloratadine | Intermediate | CS-T-51737 | 117811-18-4 | In Stock |
| 8-Deschloro-8-bromo-N-methyl Desloratadine | Intermediate | CS-T-52065 | 130642-57-8 | In Stock |
| Boc-Desloratadine | Intermediate | CS-Y-00096 | 1309283-27-9 | In Stock |
Glucuronide
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 6-Hydroxy Desloratadine β-D-Glucuronide | Glucuronide | CS-O-49082 | 956126-16-2 | Enquire |
| Loratadine glucose adduct 1 | Glucuronide | CS-O-58221 | ---- | Enquire |
| Loratadine glucose adduct 2 | Glucuronide | CS-O-58222 | ---- | Enquire |
| 3-Hydroxy Desloratadine-β-D-Glucuronide | Glucuronide | CS-T-55936 | 774538-89-5 | Enquire |
Fine Chemicals
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Iso Loratadine A | Fine Chemicals | CS-EO-00026 | 169253-13-8 | Enquire |
Nitrosamine
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| N-Nitroso Desloratadine | Nitrosamine | CS-T-59617 | 1246819-22-6 | In Stock |
Secondary Standards
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Desloratadine | Secondary Standards | CS-SS-26628 | 100643-71-8 | Enquire |
| Desloratadine Related Compound A | Secondary Standards | CS-SS-25194-50MG | 117796-50-6 | Enquire |
| Desloratadine Related Compound B | Secondary Standards | CS-SS-25195-50MG | 432543-89-0 | Enquire |
| Desloratadine Related Compound F | Secondary Standards | CS-SS-25196-100MG | Not Available | Enquire |
| Loratadine | Secondary Standards | CS-SS-24376-1GM | 79794-75-5 | Enquire |
| Loratadine Impurity A | Secondary Standards | CS-SS-25191-50MG | 133284-74-9 | Enquire |
| Loratadine Impurity E | Secondary Standards | CS-SS-25192-50MG | 170727-59-0 | Enquire |
| Loratadine Impurity H | Secondary Standards | CS-SS-25193-100MG | 29976-53-2 | Enquire |
| Loratadine Related Compound B | Secondary Standards | CS-SS-25189-50MG | 38092-89-6 | Enquire |
| Loratadine Related Compound C | Secondary Standards | CS-SS-25190-50MG | 31251-41-9 | Enquire |
Analytical Standard
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| N-Nitroso Desloratadine | Analytical Standard | CS-T-59617-10MG | 1246819-22-6 | Enquire |
| N-nitroso-desloratadine-100 PPM in Acetonitrile | Analytical Standard | CS-T-59617-1.5ML | 1246819-22-6 | Enquire |
Therapeutic
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Desloratadine | Therapeutic | CS-O-00556 | 100643-71-8 | In Stock |