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Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Levodopa, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Levodopa 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 Levodopa-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.

Levodopa Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
3-O-Methyldopa-d3 Stable Isotopes CS-O-02682 586954-09-8 In Stock
Foslevodopa-d3 Stable Isotopes CS-O-59115 97321-87-4 (Unlabeled) Enquire
Levodopa-d3 Stable Isotopes CS-O-02700 53587-29-4 In Stock


API Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Levodopa API Standards CS-O-01774 59-92-7 In Stock
Melevodopa API Standards CS-O-01847 7101-51-1 In Stock


Metabolites

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Levodopa Sulphate Metabolites CS-O-30480 217657-34-6 Enquire
rac 3-O-Methyl DOPA Metabolites CS-EK-01065 7636-26-2 Enquire


Impurities

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
3-Acetyl-L-tyrosine Hydrochloride Impurities CS-T-64839 32404-28-7 Enquire
3-Methoxy-L-tyrosine Impurities CS-BX-00607 300-48-1 In Stock
3-Methoxytyrosine Impurities CS-O-57692 7636-26-2 Enquire
3-O-Methyl-L-DOPA Monohydrate Impurities CS-T-33695 200630-46-2 Enquire
Levodopa EP Impurity D Impurities CS-O-10846 5796-17-8 In Stock
Levodopa Related Compound A Impurities CS-T-27246 27244-64-0 In Stock


Glucuronides

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
3-O-Methyl-L-DOPA 4-Glucuronide Glucuronides CS-T-58158 52583-26-3 Enquire


Fine Chemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
3-(3,4-Dimethoxyphenyl)-L-Alanine Fine Chemicals CS-T-19564 32161-30-1 In Stock