(3R)-3-(9H-fluoren-9-ylmethoxycarbonylamino)-4-(4-methylphenyl)butanoic acid (3R)-3-(9H-fluoren-9-ylmethoxycarbonylamino)-4-(p-tolyl)butanoic acid (3R)-3-(9H-fluoren-9-ylmethoxycarbonylamino)-4-(p-tolyl)butyric acid (3R)-3-[[9H-fluoren-9-ylmethoxy(oxo)methyl]amino]-4-(4-methylphenyl)butanoic acid 269398-86-9 Fmoc-(R)-3-Amino-4-(4-methylphenyl)-butyric acid CAS 269398-86-9

Purity 97%+In StockPharmaceutical Standards
CAS No.269398-86-9
Molecular FormulaC26H25NO4
Molecular Weight415.48 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(3R)-3-(9H-fluoren-9-ylmethoxycarbonylamino)-4-(4-methylphenyl)butanoic acid (3R)-3-(9H-fluoren-9-ylmethoxycarbonylamino)-4-(p-tolyl)butanoic acid (3R)-3-(9H-fluoren-9-ylmethoxycarbonylamino)-4-(p-tolyl)butyric acid (3R)-3-[[9H-fluoren-9-ylmethoxy(oxo)methyl]amino]-4-(4-methylphenyl)butanoic acid 269398-86-9 Fmoc-(R)-3-Amino-4-(4-methylphenyl)-butyric acid CAS 269398-86-9 chemical structure

Description

CATO manufactures (3R)-3-(9H-fluoren-9-ylmethoxycarbonylamino)-4-(4-methylphenyl)butanoic acid (3R)-3-(9H-fluoren-9-ylmethoxycarbonylamino)-4-(p-tolyl)butanoic acid (3R)-3-(9H-fluoren-9-ylmethoxycarbonylamino)-4-(p-tolyl)butyric acid (3R)-3-[[9H-fluoren-9-ylmethoxy(oxo)methyl]amino]-4-(4-methylphenyl)butanoic acid 269398-86-9 Fmoc-(R)-3-Amino-4-(4-methylphenyl)-butyric acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

CATO supplies (3R)-3-(9H-fluoren-9-ylmethoxycarbonylamino)-4-(4-methylphenyl)butanoic acid (3R)-3-(9H-fluoren-9-ylmethoxycarbonylamino)-4-(p-tolyl)butanoic acid (3R)-3-(9H-fluoren-9-ylmethoxycarbonylamino)-4-(p-tolyl)butyric acid (3R)-3-[[9H-fluoren-9-ylmethoxy(oxo)methyl]amino]-4-(4-methylphenyl)butanoic acid 269398-86-9 Fmoc-(R)-3-Amino-4-(4-methylphenyl)-butyric acid (CAS 269398-86-9), a certified reference material (molecular formula C26H25NO4, MW 415.48 g/mol) for analytical method development and quality control.

(3R)-3-(9H-fluoren-9-ylmethoxycarbonylamino)-4-(4-methylphenyl)butanoic acid (3R)-3-(9H-fluoren-9-ylmethoxycarbonylamino)-4-(p-tolyl)butanoic acid (3R)-3-(9H-fluoren-9-ylmethoxycarbonylamino)-4-(p-tolyl)butyric acid (3R)-3-[[9H-fluoren-9-ylmethoxy(oxo)methyl]amino]-4-(4-methylphenyl)butanoic acid 269398-86-9 Fmoc-(R)-3-Amino-4-(4-methylphenyl)-butyric acid (C26H25NO4) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

Physical & Chemical Properties

Molecular FormulaC26H25NO4
Molecular Weight415.48 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at room temperature, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)15.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Nitrogen Atoms1

Recommended Standards

Why CATO?