CAS 51987-73-6 · Boc-Protected · 2 functional traits · cGMP compliant · Ships from USA in 2-3 days
N-Boc-(L)-Phenylalanine methyl ester (CAS Number: 51987-73-6) is a Boc (tert-butyloxycarbonyl)-protected amino compound for orthogonal synthesis featuring a Benzene ring. ChemContract Research supplies this moderate-complexity compound in high purity from our Huntington Beach, California facility, ensuring consistent quality and reliable domestic delivery throughout the United States.
The Boc group is removed cleanly with TFA or HCl in dioxane, making it orthogonal to Fmoc, Cbz, and Alloc protecting groups — essential for synthesizing complex peptide therapeutics. Ester hydrolysis by cellular esterases is the most commonly exploited prodrug activation mechanism — enabling drugs that cannot cross biological membranes as free acids.
Primary applications include solid-phase peptide synthesis (spps) with orthogonal boc/fmoc strategies and prodrug development to mask carboxylic acids and improve membrane permeability. This compound serves researchers and manufacturers across the pharmaceutical, peptide synthesis, fine chemical sectors. Whether you require N-Boc-(L)-Phenylalanine methyl ester for early-stage research, process development, or commercial-scale production, ChemContract Research offers flexible ordering from milligram to multi-kilogram quantities with custom synthesis options and full batch documentation including Certificates of Analysis (CoA) and Safety Data Sheets.
How N-Boc-(L)-Phenylalanine methyl ester is used across pharmaceutical and peptide synthesis sectors
Solid-phase peptide synthesis (SPPS) with orthogonal Boc/Fmoc strategies
Prodrug development to mask carboxylic acids and improve membrane permeability
Multi-step pharmaceutical synthesis requiring selective amine deprotection
Protecting group for hydroxyl functionalities (acetate, benzoate)
Amino acid and peptide intermediate production under cGMP
Ring-opening polymerization monomer for biodegradable polymers
Detailed specifications for this boc-protected, including purity, molecular weight, and analytical data are available upon request. Every batch from ChemContract Research includes:
Boc-protected compounds are generally stable. TFA deprotection generates isobutylene gas — perform in a fume hood. Some esters are volatile and flammable. Handle in a well-ventilated area. Keep away from ignition sources.
Store at room temperature in a sealed container. Stable under neutral and basic conditions; avoid strong acids during storage. Store at room temperature in a tightly sealed container away from heat and open flame.
Boc-protected compounds like N-Boc-(L)-Phenylalanine methyl ester are shipped with confirmed protection integrity by NMR. Orthogonal deprotection protocols included on request.
Every batch of N-Boc-(L)-Phenylalanine methyl ester is produced under cGMP conditions with full CoA documentation, HPLC purity verification, and lot traceability.
Ship from our Huntington Beach, CA facility with 2-3 business day domestic delivery. No import delays, no customs fees, no tariff surprises.
Need a specific grade, quantity, or derivative of N-Boc-(L)-Phenylalanine methyl ester? Our team of PhD chemists can develop custom synthesis solutions for your exact requirements.
Common questions about N-Boc-(L)-Phenylalanine methyl ester
N-Boc-(L)-Phenylalanine methyl ester is a Boc (tert-butyloxycarbonyl)-protected amino compound for orthogonal synthesis used primarily in the pharmaceutical and peptide synthesis industries. Key applications include solid-phase peptide synthesis (spps) with orthogonal boc/fmoc strategies and prodrug development to mask carboxylic acids and improve membrane permeability.
ChemContract Research is a trusted USA-based supplier of N-Boc-(L)-Phenylalanine methyl ester. We offer competitive pricing, fast domestic shipping from our Huntington Beach, California facility, and full quality documentation including Certificates of Analysis (CoA). Request a quote at chemistry@chem-contract.com or call +1 (714) 732-8549.
ChemContract Research supplies N-Boc-(L)-Phenylalanine methyl ester in multiple purity grades: ≥95% standard grade, ≥97% high-purity grade, and ≥99% ultra-high-purity grade depending on application requirements. We can also provide custom purity grades through our synthesis capabilities. Contact us for specific purity information and CoA documentation.
Yes. ChemContract Research offers custom synthesis services for N-Boc-(L)-Phenylalanine methyl ester from milligram to multi-kilogram scale. Our cGMP-compliant facilities and experienced chemists can accommodate custom specifications, packaging requirements, and delivery timelines. Contact our team to discuss your project.
The Boc protecting group in N-Boc-(L)-Phenylalanine methyl ester is cleanly removed by treatment with trifluoroacetic acid (TFA, 20–50% in DCM) at room temperature, typically within 30–60 minutes. Alternative conditions include HCl in dioxane (4M) or trimethylsilyl triflate with 2,6-lutidine. The Boc group is stable to base, hydrogenation, and many nucleophilic conditions, making it orthogonal to Fmoc and Cbz groups.
Store at room temperature in a sealed container. Stable under neutral and basic conditions; avoid strong acids during storage. Store at room temperature in a tightly sealed container away from heat and open flame. Always consult the compound-specific Safety Data Sheet (SDS) provided with your order for detailed storage requirements. ChemContract Research includes handling and storage documentation with every shipment.
The CAS Registry Number for N-Boc-(L)-Phenylalanine methyl ester is 51987-73-6. This unique identifier is used worldwide to reference this specific compound in chemical databases, regulatory filings, and scientific literature. ChemContract Research supplies this compound with full quality documentation. Contact us at chemistry@chem-contract.com for availability and pricing.
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