Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Trimethoprim, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Trimethoprim 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 Trimethoprim-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 Trimethoprim-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.
Trimethoprim Related Compounds
Stable Isotopes
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| (4-Trideuteromethoxy) Trimethoprim N3-Oxide | Stable Isotopes | CS-T-102462 | 27653-67-4(Unlabelled) | Enquire |
| 4-Hydroxy Trimethoprim-13C3 | Stable Isotopes | CS-T-101039 | 1391053-67-0 | Enquire |
| 4-Hydroxy Trimethoprim-d9 | Stable Isotopes | CS-T-101038 | 1794752-40-1 | Enquire |
| 4-O-Desmethyl 4-O-Ethyl Trimethoprim-D5 | Stable Isotopes | CS-T-96815 | Not Available | Enquire |
| C-α-NAC Trimethoprim-d3 | Stable Isotopes | CS-T-104085 | Not Available | Enquire |
| Trimethoprim-15N3 | Stable Isotopes | CS-T-100994 | Not Available | Enquire |
| Trimethoprim-d9 | Stable Isotopes | CS-O-02914 | 1189460-62-5 | In Stock |
| α-Hydroxy Trimethoprim-D3 (Major) | Stable Isotopes | CS-T-96797 | Not Available | Enquire |
| 4-Desmethoxy-4-bromo Trimethoprim-d3 | Stable Isotopes | CS-T-73697 | 1346600-27-8 | Enquire |
| N2-Methyl Trimethoprim-D3 (Impurity) | Stable Isotopes | CS-T-96789 | Not Available | Enquire |
| Trimethoprim-13C3 | Stable Isotopes | CS-T-88164 | 1189970-95-3 | Enquire |
API
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Syringaldehyde | API | CS-T-87281 | 134-96-3 | In Stock |
| Trimethoprim | API | CS-O-02487 | 738-70-5 | In Stock |
Impurity
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 3-Desmethoxy-3-bromo Trimethoprim | Impurity | CS-T-16091 | 16285-82-8 | Enquire |
| 4-Hydroxy Trimethoprim | Impurity | CS-T-28866 | 112678-48-5 | Enquire |
| Trimethoprim EP Impurity A | Impurity | CS-T-35337 | 213745-86-9 | Enquire |
| Trimethoprim EP Impurity C | Impurity | CS-T-56515 | 29606-06-2 | Enquire |
| Trimethoprim EP Impurity E | Impurity | CS-T-03586 | 60729-91-1 | Enquire |
| Trimethoprim EP Impurity G | Impurity | CS-T-16503 | 78025-68-0 | Enquire |
| Trimethoprim EP Impurity H | Impurity | CS-T-35305 | 1916-07-0 | In Stock |
| Trimethoprim EP Impurity I(Mixture of cis/trans Isomers) | Impurity | CS-T-48268 | 30078-48-9 | In Stock |
| Trimethoprim Impurity B | Impurity | CS-P-00200 | 30806-86-1 | Enquire |
| Trimethoprim Impurity C | Impurity | CS-P-00198 | 29606-06-2 | Enquire |
| Trimethoprim Impurity G | Impurity | CS-P-00199 | 78025-68-0 | Enquire |
| Trimethoprim Keto Analogue | Impurity | CS-T-45595 | 30806-86-1 | In Stock |
| Trimethoprim L-glutamate | Impurity | CS-O-51158 | 94232-28-7 | Enquire |
| α-(3,4,5-Trimethoxybenzylidene)-β-methoxypropylnitrile | Impurity | CS-T-62422 | 7520-69-6 | In Stock |
| (Z)-3-(dimethylamino)-2-(3,4,5-trimethoxybenzyl)acrylonitril... | Impurity | CS-O-40007 | 30077-85-1 | Enquire |
| 3-Desmethyl Trimethoprim | Impurity | CS-T-16505 | 27653-69-6 | Enquire |
| 4-Demethyltrimethoprim | Impurity | CS-T-15135 | 21253-58-7 | Enquire |
| 5-(3,4,5-Trimethoxybenzyl)pyrimidine-2,4-diol | Impurity | CS-T-45600 | 93885-69-9 | Enquire |
| Trimethoprim 1-N-oxide | Impurity | CS-O-33931 | 27653-68-5 | Enquire |
| Trimethoprim EP Impurity D | Impurity | CS-T-03580 | 92440-76-1 | Enquire |
| Trimethoprim N-oxide | Impurity | CS-O-33930 | 27653-67-4 | Enquire |
EP Standards
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Trimethoprim for system suitability CRS ( containing impurit... | EP Standards | CS-EG-03261 | Not Available | Enquire |
Intermediate
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 3,4,5-Trimethoxybenzaldehyde | Intermediate | CS-T-45540 | 86-81-7 | In Stock |
| Trimethoprim lactate | Intermediate | CS-DK-00035 | 23256-42-0 | In Stock |
| Trimethoprim L-Glutamate | Intermediate | CS-P-09163 | 94232-28-7 | Enquire |
Nitrosamine
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| N-Nitroso Trimethoprim EP Impurity A | Nitrosamine | CS-EO-02722 | Not Available | Enquire |
| Nitroso Anilino compound | Nitrosamine | CS-O-41384 | Not Available | Enquire |