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

Phenylalanine Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
4-Acetyl-L-phenylalanine-13C6 Stable Isotopes CS-T-97058 Not Available Enquire
4-Azido-L-phenylalanine-13C9,15N Stable Isotopes CS-T-97022 Not Available Enquire
4-Bromo-N-Boc-α-methyl-D-phenylalanine-13C,d3 Stable Isotopes CS-T-100744 Not Available Enquire
4-Nitro-L-Phenylalanine-d4 Methyl Ester Hydrochloride Stable Isotopes CS-T-97264 Not Available Enquire
DL-Phenylalanine,1,1Dimethylethylester Hydrochloride-d7 Stable Isotopes CS-O-57313 Not Available In Stock
DL-Phenylalanine-d8 Stable Isotopes CS-T-84204 29909-00-0 Enquire
L-Aspartyl-L-phenylalanine-d5 Stable Isotopes CS-T-97026 Not Available Enquire
N--[4-(1-Methylethyl)benzoyl]-D-phenylalanine-d7 Stable Isotopes CS-T-100034 Not Available Enquire
N-Fmoc-D-phenylalanine-d5 Stable Isotopes CS-T-96954 2714483-74-4 No data available
N-Lactoyl Phenylalanine-d3 Stable Isotopes CS-O-60270 183241-73-8 (Unlabeled) Enquire
Octreotide-phenylalanine-d8 di-Trifluoroacetic Acid Salt Stable Isotopes CS-T-95520 83150-76-9 (Unlabelled) Enquire


API

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
L-Phenylalanine API CS-O-07252 63-91-2 In Stock


Impurity

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
3-(hydroxymethyl)-L-Phenylalanine Impurity CS-O-56899 41679-16-7 Enquire
3,4,5-Trihydroxyphenylalanine Impurity CS-O-57868 16032-83-0 Enquire
4-Azido-L-phenylalanine Impurity CS-T-04663 33173-53-4 Enquire
4-carboxy-N-[(1,1-dimethyletho4-carboxy-N-[(1,1-dimethyletho... Impurity CS-O-44712 2762439-10-9 Enquire
4-Chloro-L-phenylalanine Impurity CS-O-13663 14173-39-8 In Stock
Bepotastine N-Acetyl phenylalanine Condensed Ether impurity Impurity CS-O-56300 ---- Enquire
N-Phthalimido 4-Nitro-L-phenylalanine Methyl Ester Impurity CS-T-84679 74743-22-9 Enquire
Phenylalanine Impurity 1 Impurity CS-O-54980 ---- Enquire
4-Borono-L-phenylalanine Impurity CS-T-07775 76410-58-7 Enquire
L-2-Nitrophenylalanine Impurity CS-T-83351 19883-75-1 Enquire
N-(trans-4-Isopropylcyclohexylcarbonyl)-D-phenylalanine-D-ph... Impurity CS-O-34662 Not Available Enquire
Na-(2-Naphthalenesulfonylglycyl)-4-amidino-D,L-phenylalanine... Impurity CS-T-59089 86125-48-6 Enquire
N-FMOC-L-phenylalanine Impurity CS-T-24582 35661-40-6 Enquire


Intermediate

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
4-Iodo-D-phenylalanine Intermediate CS-AC-03986 62561-75-5 In Stock
DL-Phenylalanine Intermediate CS-M-58051 150-30-1 In Stock


Fine Chemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
4-Propargyloxy-L-phenylalanine Fine Chemicals CS-O-59774 1080496-42-9 Enquire
D-Homophenylalanine Ethyl Ester Hydrochloride Fine Chemicals CS-DJ-00147 90940-54-8 In Stock
D-Phenylalanine Fine Chemicals CS-O-00234 673-06-3 In Stock
L-tyrosine diethylamide Fine Chemicals CS-O-40777 Not Available Enquire


Building Blocks

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(aS)-a-[[(1,1-Dimethylethoxy)carbonyl]amino]benzenebutanoyl-... Building Blocks CS-T-102284 868540-15-2 Enquire
2-Chloro-N-Fmoc-DL-phenyLalanine Building Blocks CS-ED-41801 678991-52-1 Enquire
4-Nitro-L-Phenylalanine Methyl Ester Hydrochloride Building Blocks CS-O-20029 17193-40-7 In Stock
Boc-3-bromo-L-phenylalanine Building Blocks CS-M-29682 82278-73-7 In Stock
Boc-2-cyano-D-phenylalanine Building Blocks CS-M-29663 261380-28-3 Enquire
Fmoc-4-chloro-L-phenylalanine Building Blocks CS-M-29799 175453-08-4 Enquire
Fmoc-d-3,3-diphenylalanine Building Blocks CS-T-75243 189937-46-0 Enquire
Fmoc-L-3,3-diphenylalanine Building Blocks CS-T-75021 201484-50-6 Enquire
Fmoc-l-4,4’-biphenylalanine Building Blocks CS-T-75149 199110-64-0 Enquire
Fmoc-ß-methyl-DL-phenylalanine Building Blocks CS-M-29813 1214028-21-3 Enquire
L-Homophenylalanine Building Blocks CS-M-57759 943-73-7 Enquire
N,N-DiMethyl-L-phenylalanine Building Blocks CS-O-48554 17469-89-5 Enquire
N-Boc-L-phenylalanine Building Blocks CS-T-07664 13734-34-4 Enquire


Deuterated Reagents

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
DL-Phenyl Alanine-d5 Deuterated Reagents CS-O-11366 284664-89-7 In Stock
D-Phenylalanine D5 Deuterated Reagents CS-O-11336 362049-55-6 Enquire


Peptide

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
[6-D-Phenylalanine]Terlipressin Peptide CS-P-06508 ---- In Stock
N-Fmoc-D-phenylalanine Peptide CS-T-24584 86123-10-6 In Stock


Pesticide Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
L-Leucyl-L-phenylalanine Pesticide Standards CS-O-51622 3063-05-6 Enquire


Stable Isotope Reagent

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
DL-4-Hydroxyphenylalanine-3,3-d2 Stable Isotope Reagent CS-C-00548 35693-18-6 Enquire
Fmoc-L-Phenylalanine (13C9,D8,15N) Stable Isotope Reagent CS-O-49382 35661-40-6 (Unlabelled) Enquire
Fmoc-L-Phenylalanine (3’,5’-13C2,2,3,3,2’,4’,6’-D6,15N) Stable Isotope Reagent CS-O-49386 35661-40-6 (Unlabelled) Enquire
L-Phenylalanine (13C9,D8,15N) Stable Isotope Reagent CS-O-49384 63-91-2 (Unlabelled) Enquire
L-PHENYLALANINE (2-13C) Stable Isotope Reagent CS-C-02176 136056-01-4 Enquire
L-Phenylalanine (3’,5’-13C2,2,3,3,2’,4’,6’-D6,15N) Stable Isotope Reagent CS-O-49387 63-91-2 (Unlabelled) Enquire
L-Phenylalanine 3-13C Stable Isotope Reagent CS-C-02177 136056-02-5 Enquire