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

L-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-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


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
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
N-Phthalimido 4-Nitro-L-phenylalanine Methyl Ester Impurity CS-T-84679 74743-22-9 Enquire
4-Borono-L-phenylalanine Impurity CS-T-07775 76410-58-7 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
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


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
Fmoc-4-chloro-L-phenylalanine Building Blocks CS-M-29799 175453-08-4 Enquire
Fmoc-ß-methyl-DL-phenylalanine Building Blocks CS-M-29813 1214028-21-3 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


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
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