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

Phenylbutyrate Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Ethyl 2-Oxo-4-phenylbutyrate-d5 Stable Isotopes CS-T-54547 1189911-53-2 In Stock
Phenylbutyrate D11 Stable Isotopes CS-EO-02572 1392208-11-5 Enquire
Sodium 4-phenylbutyrate - D11 Stable Isotopes CS-O-46382 1392208-11-5 Enquire


Impurities

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Phenylbutyrate Related Compound 5 Impurities CS-O-46234 1443417-10-4 Enquire
Sodium Phenylbutyrate EP impurity C Impurities CS-O-10998 4441-63-8 In Stock


Intermediates

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Benzyl 2-Oxo-4-phenylbutyrate Intermediates CS-T-05928 84688-29-9 Enquire
Ethyl 2-oxo-4-phenylbutyrate (93%) Intermediates CS-T-54546 64920-29-2 Enquire
rac Benzyl 2-Hydroxy-4-phenylbutyrate Intermediates CS-T-48906 109684-03-9 Enquire
rac Benzyl 2-Nitrobenzenesulfonyloxy-4-phenylbutyrate Intermediates CS-T-48941 1159977-05-5 Enquire


Fine Chemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
3-Benzoylpropionic Acid Fine Chemicals CS-T-05294 2051-95-8 In Stock
Sodium Phenylbutyrate Fine Chemicals CS-O-30778 1716-12-7 In Stock