Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Folic Acid, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Folic Acid 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 Folic Acid-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 Folic Acid-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.
Folic Acid Related Compounds
Stable Isotopes
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 10-Formyltetrahydrofolate D4 | Stable Isotopes | CS-O-52422 | 1359841-83-0 | Enquire |
| 4,5,6,7-Tetrahydro 2-Acetamido Folic Acid Bismethyl Ester-d4 | Stable Isotopes | CS-T-99805 | Not Available | Enquire |
| 5-(Methyl-d3)tetrahydrofolic acid | Stable Isotopes | CS-EO-02382 | 1356019-97-0 | Enquire |
| 5-(Methyl-d3)tetrahydrofolic Acid Calcium Salt (Mixture of D... | Stable Isotopes | CS-T-99984 | 26560-38-3(Unlabelled) | Enquire |
| 5,10-Diformyl-5,6,7,8-tetrahydro Folic Acid-D4 Calcium Salt ... | Stable Isotopes | CS-T-101537 | Not Available | Enquire |
| 5-Methyltetrahydrofolic Acid-[13C5] | Stable Isotopes | CS-I-00406 | 1207282-74-3 | Enquire |
| 5-Methyltetrahydrofolic acid-13C,d3 | Stable Isotopes | CS-CX-00016 | 1356019-94-7 | In Stock |
| 9-Oxofolic Acid-d4 | Stable Isotopes | CS-T-99918 | Not Available | Enquire |
| Dehydro Folic Acid 1,5-Dimethyl Ester-13C5 | Stable Isotopes | CS-T-102493 | 319919-60-3(Unlabelled) | Enquire |
| Dehydro Folic Acid 1,5-Dimethyl Ester-13C5,15N | Stable Isotopes | CS-T-102485 | 319919-60-3(Unlabelled) | Enquire |
| Dihydro Folic Acid-D4 (Technical Grade) | Stable Isotopes | CS-T-101516 | Not Available | Enquire |
| Folic Acid 13C1 | Stable Isotopes | CS-T-100288 | Not Available | Enquire |
| Folic acid 13C6 | Stable Isotopes | CS-O-45977 | 161406-20-8 | Enquire |
| Folic acid-13C5 | Stable Isotopes | CS-T-55009 | 1207282-75-4 | In Stock |
| Levomefolic Acid-d3 | Stable Isotopes | CS-O-01250 | 31690-09-2(Unlabeled) | In Stock |
| N-Nitroso Folic Acid-d4 | Stable Isotopes | CS-O-42067 | 26360-21-4 (Unlabeled) | In Stock |
| (6S)-5-Methyltetrahydrofolic acid, calcium salt (glutamic ac... | Stable Isotopes | CS-O-50318 | 129025-21-4(Unlabelled) | Enquire |
| 10-Formyl Folic Acid-d4 | Stable Isotopes | CS-T-74422 | 461426-41-5 | Enquire |
| 5-formyltetrahydrofolic acid 13C6 | Stable Isotopes | CS-EK-02254 | 212248-94-7 | Enquire |
| 5-Methyltetrahydrofolic acid 13C6 | Stable Isotopes | CS-EK-02865 | 212248-92-5 | Enquire |
| 5-Methyltetrahydrofolic acid D4 | Stable Isotopes | CS-P-08364 | 461426-39-1 | Enquire |
| Folic Acid D2 | Stable Isotopes | CS-T-55010 | 69022-87-3 | Enquire |
| Folic Acid D4 | Stable Isotopes | CS-T-55008 | 171777-72-3 | Enquire |
| Folic acid disodium salt 13C6 | Stable Isotopes | CS-EK-00229 | 161406-20-8 free acid | Enquire |
| Folic Acid-13C5, 15N | Stable Isotopes | CS-T-95720 | Not Available | Enquire |
| L-Tetrahydrofolic Acid-d4 (Major) (>70% when packaged) | Stable Isotopes | CS-T-86674 | 1356841-72-9 | Enquire |
| N-Acetyl Folic Acid-d4 | Stable Isotopes | CS-T-47241 | 461426-36-8 | Enquire |
| Tetrahydrofolic acid 13C5 | Stable Isotopes | CS-EK-00554 | 135-16-0 unlabeled | Enquire |
| Tetrahydrofolic acid 13C6 | Stable Isotopes | CS-EK-01322 | 212248-88-9 | Enquire |
API
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Folcidin | API | CS-ZG-78821 | 65165-92-6 | Enquire |
| Folic Acid | API | CS-O-11653 | 59-30-3 | In Stock |
| Folic Acid Hydrate | API | CS-EO-03575 | 1174277-30-5 | Enquire |
| Folic acid dihydrate | API | CS-T-76592 | 75708-92-8 | Enquire |
| Grifolic Acid | API | CS-T-25682 | 80557-12-6 | Enquire |
| Homofolic Acid | API | CS-T-78163 | 3566-25-4 | Enquire |
Metabolite
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Dimethyltetrahydrofolic acid | Metabolite | CS-EO-00253 | 3029091-15-1 | Enquire |
Impurity
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| (6R)-5-MethylTetrahedropteroic Acid | Impurity | CS-O-45624 | Not Available | Enquire |
| 10-Formylfolic acid | Impurity | CS-O-32559 | 134-05-4 | In Stock |
| 5-(Alpha-Folinilamido) Tetrahydrofolic Acid | Impurity | CS-O-38646 | Not Available | Enquire |
| 5-(gamma-folinyl)tetrahydrofolate | Impurity | CS-O-45472 | ---- | Enquire |
| 5,6,7,8-Tetrahydro-5,10-dimethylfolic acid | Impurity | CS-O-53895 | 1553-43-1 | Enquire |
| 5-Methyltetrahydrofolic acid | Impurity | CS-ED-41528 | 39605-23-7 | Enquire |
| 9-Oxofolic Acid | Impurity | CS-T-38286 | 39707-61-4 | In Stock |
| Calcium-D-5-Methyltetrahydrofolic acid | Impurity | CS-O-42723 | 301298-88-4 | In Stock |
| Cis 2-(1,6-dimethylpiperidine-3-yl)propan-2-ol | Impurity | CS-O-42724 | 2057-26-3 | Enquire |
| D-Folic Acid | Impurity | CS-T-76757 | 65165-91-5 | In Stock |
| Folic Acid Impurity 11 | Impurity | CS-O-58970 | 82778-08-03 | Enquire |
| Folic Acid Impurity 27 | Impurity | CS-O-59697 | 56364-06-8 | Enquire |
| Folic acid Impurity 8 | Impurity | CS-EO-00895 | 2305206-68-0 | Enquire |
| Folic acid Impurity A | Impurity | CS-O-31067 | 4271-30-1 | In Stock |
| Folic Acid Impurity B | Impurity | CS-O-31108 | 1004-75-7 | In Stock |
| Folic Acid Impurity D | Impurity | CS-O-11076 | 119-24-4 | In Stock |
| Folic acid impurity G | Impurity | CS-O-33082 | 2734707-85-6 | In Stock |
| Isofolic acid | Impurity | CS-O-10148 | 47707-78-8 | In Stock |
| Pyrazino-s-triazine derivative (Mefox) | Impurity | CS-T-93507 | 79573-48-1 | Enquire |
| trans 2-(1,6-Dimethylpiperidin-3-yl)propan-2-ol | Impurity | CS-O-42725 | 2057-25-2 | Enquire |
| (6R)-5,10-Diformyltetrahydrofolic Acid | Impurity | CS-EO-02075 | Not Available | Enquire |
| (6S)-5-MethylTetrahedropteroic Acid | Impurity | CS-O-45625 | Not Available | Enquire |
| (6S)-Mefox | Impurity | CS-P-08908 | Not Available | Enquire |
| (6S)-Tetrahydrofolic Acid | Impurity | CS-T-61821 | 71963-69-4 | Enquire |
| 10-[(3-Methanethiosulfonyl)-1-propionyl] Folic Acid | Impurity | CS-T-80910 | 1346617-38-6 | Enquire |
| 10-formyl dihydrofolic acid | Impurity | CS-O-35801 | Not Available | Enquire |
| 2-Amino-6-formylpteridin-4-one | Impurity | CS-T-02670 | 712-30-1 | Enquire |
| 5-(gamma-folinilamido) tetrahydrofolic acid | Impurity | CS-O-35692 | Not Available | Enquire |
| 5,10-Methenyltetrahydrofolic acid | Impurity | CS-ED-00617 | 7444-29-3 | Enquire |
| 6-(Hydroxymethyl)pterin | Impurity | CS-T-93554 | 712-29-8 | Enquire |
| 6-Pterinyl Folic Acid | Impurity | CS-T-40937 | 1391068-26-0 | Enquire |
| Calcium D-5- Methyltetrahydrofolate | Impurity | CS-O-41294 | 2585189-28-0 | Enquire |
| Ferrous Sulphate & Folic acid pellets | Impurity | CS-DT-00027 | Not Available | Enquire |
| Folic Acid EP Impurity E | Impurity | CS-O-14384 | 1391068-26-0 | Enquire |
| Folic Acid EP Impurity F | Impurity | CS-O-14383 | 1391194-56-1 | Enquire |
| Folic acid Impurity 3 | Impurity | CS-EO-01030 | Not Available | Enquire |
| Folic acid Impurity 4 | Impurity | CS-EO-01031 | Not Available | Enquire |
| Folic Acid Impurity B | Impurity | CS-P-06960 | 35011-47-3 | Enquire |
| Folic acid impurity H | Impurity | CS-O-33083 | 2366274-27-1 | Enquire |
| Folic Acid NHS Ester (~90% ) | Impurity | CS-T-74880 | 153445-05-7 | Enquire |
| Levomefolic acid | Impurity | CS-MM-12166 | 31690-09-2 | Enquire |
| Tetrahydrofolic Acid | Impurity | CS-T-43690 | 135-16-0 | Enquire |
Intermediate
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Dihydro Folic Acid | Intermediate | CS-T-18974 | 4033-27-6 | In Stock |
Fine Chemicals
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| 2-[(4-Aminobenzoyl)amino]pentanedioic acid | Fine Chemicals | CS-MM-31060 | 4230-33-5 | Enquire |
| 5-Methyltetrahydrofolic Acid Disodium | Fine Chemicals | CS-TC-02113 | 68792-52-9 | Enquire |
Pesticide Standards
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| Rubifolic acid | Pesticide Standards | CS-BT-00556 | 80489-65-2 | Enquire |
Nitrosamine
| COMPOUND | CATEGORY | CAT. No. | CAS. No. | STOCK STATUS |
|---|---|---|---|---|
| N10-Nitroso Folic Acid | Nitrosamine | CS-ED-01783 | 26360-21-4 | In Stock |
| N-Nitroso 2-Deamino-2-hydroxyfolic acid | Nitrosamine | CS-O-46534 | Not Available | In Stock |
| N-nitroso-Levomefolic Acid-1 | Nitrosamine | CS-O-52821 | ---- | Enquire |
| N-nitroso-Levomefolic Acid-2 | Nitrosamine | CS-O-52822 | ---- | Enquire |
| N-Nitrosofolic acid | Nitrosamine | CS-ED-01722 | 29291-35-8 | Discontinued |