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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.

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
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
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


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


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
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


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


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


Stable Isotope Reagent

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
N-[4-[(Trifluoroacetyl)amino]benzoyl]-L-glutamic Acid Dimeth... Stable Isotope Reagent CS-T-102873 233600-78-7(Unlabelled) Enquire


Analytical Standard

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
N10-Nitroso Folic Acid Analytical Standard CS-ED-01783-10MG 26360-21-4 Enquire
N-nitroso-folic acid-100 PPM in Acetonitrile Analytical Standard CS-ED-01783-1.5ML 26360-21-4 Enquire
N-nitroso-Levomefolic Acid-1 Analytical Standard CS-O-52821-10MG ---- Enquire
N-nitroso-levomefolic acid-1-100 PPM in Acetonitrile Analytical Standard CS-O-52821-1.5ML ---- Enquire
N-nitroso-Levomefolic Acid-2 Analytical Standard CS-O-52822-10MG ---- Enquire
N-nitroso-levomefolic acid-2-100 PPM in Acetonitrile Analytical Standard CS-O-52822-1.5ML ---- Enquire