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

Phenylbutanoic Acid Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
4-Phenylbutanoic acid d5 Stable Isotopes CS-O-03253 64138-52-9 In Stock


Impurities

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
"4-(3,4-Dichlorophenyl)-4-phenylbutanoic Acid" Impurities CS-T-52694 79560-18-2 Enquire
(2S)-2-amino-4-oxo-4-phenylbutanoic acid hydrochloride Impurities CS-P-00818 168154-76-5 Enquire
(S)-4-Amino-3-phenylbutanoic acid hydrochloride Impurities CS-AC-02393 52950-37-5 Enquire
2-amino-2-phenylbutanoic acid Impurities CS-O-44768 5438-07-3 Enquire


Intermediates

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
"(2S,3S)-3-amino-2-hydroxy-4-phenylbutanoic acid" Intermediates CS-EL-10053 62023-62-5 Enquire
"2,4-Dioxo-4-phenylbutanoic acid" Intermediates CS-AC-07955 5817-92-5 Enquire
(2S,3R)-3-amino-2-hydroxy-4-phenylbutanoic acid Intermediates CS-ED-05595 59554-14-2 Enquire
(2S,3R)-3-amino-2-hydroxy-4-phenylbutanoic acid hydrochlorid... Intermediates CS-ED-03046 128223-55-2 Enquire
(R)-3-phenylbutanoic acid Intermediates CS-DV-00316 772-14-5 Enquire
(S)-2-((tert-Butoxycarbonyl)amino)-4-phenylbutanoic acid Intermediates CS-ED-17306 108524-68-1 Enquire
(S)-2-Amino-4-oxo-4-phenylbutanoic acid hydrochloride Intermediates CS-ED-40564 54631-37-7 Enquire
2-Acetamido-4-phenylbutanoic acid Intermediates CS-ED-37966 60505-02-4 Enquire
2-Amino-2-methyl-4-phenylbutanoic acid hydrochloride Intermediates CS-ED-06525 132539-65-2 Enquire
2-Amino-3-methyl-2-phenylbutanoic acid Intermediates CS-ED-07527 188586-96-1 Enquire
2-Amino-3-phenylbutanoic acid Intermediates CS-ED-10262 2260-12-0 Enquire
2-amino-3-phenylbutanoic Acid Hydrochloride Intermediates CS-AD-00877 80997-87-1 Enquire
2-Hydroxy-3-phenylbutanoic acid Intermediates CS-ED-30349 91061-47-1 Enquire
3-Amino-3-methyl-2-phenylbutanoic acid hydrochloride Intermediates CS-ED-07812 2060039-89-4 Enquire
3-Amino-4-phenylbutanoic acid Intermediates CS-M-58267 15099-85-1 Enquire
3-Amino-4-phenylbutanoic acid hydrochloride Intermediates CS-ED-10695 460039-42-3 Enquire
3-Benzyl-4-phenylbutanoic acid Intermediates CS-ED-21945 93651-70-8 Enquire
3-Methyl-3-phenylbutanoic acid Intermediates CS-ED-17543 1010-48-6 Enquire
4-{2-[3-chloro-5-(trifluoromethyl)-2-pyridinyl]hydrazono}-4-... Intermediates CS-EL-05466 338397-43-6 Enquire
4-Amino-2-phenylbutanoic acid Intermediates CS-ED-40214 13080-10-9 Enquire
4-Amino-3-phenylbutanoic acid hydrochloride Intermediates CS-EL-02349 52992-48-0 Enquire


Fine Chemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
2-Oxo-4-phenylbutanoic acid Fine Chemicals CS-M-46623 710-11-2 In Stock


Building Blocks

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(S)-2-Amino-2-phenylbutanoic acid Building Blocks CS-O-57671 52247-77-5 Enquire