(3S)-3-(9H-fluoren-9-ylmethoxycarbonylamino)-4-(4-methylphenyl)butanoic acid (3S)-3-(9H-fluoren-9-ylmethoxycarbonylamino)-4-(p-tolyl)butanoic acid (3S)-3-(9H-fluoren-9-ylmethoxycarbonylamino)-4-(p-tolyl)butyric acid (3S)-3-[[9H-fluoren-9-ylmethoxy(oxo)methyl]amino]-4-(4-methylphenyl)butanoic acid 270062-97-0 Fmoc-(S)-3-Amino-4-(4-methylphenyl)-butyric acid CAS 270062-97-0

Purity 97%+In StockPharmaceutical Standards
CAS No.270062-97-0
Molecular FormulaC26H25NO4
Molecular Weight415.48 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(3S)-3-(9H-fluoren-9-ylmethoxycarbonylamino)-4-(4-methylphenyl)butanoic acid (3S)-3-(9H-fluoren-9-ylmethoxycarbonylamino)-4-(p-tolyl)butanoic acid (3S)-3-(9H-fluoren-9-ylmethoxycarbonylamino)-4-(p-tolyl)butyric acid (3S)-3-[[9H-fluoren-9-ylmethoxy(oxo)methyl]amino]-4-(4-methylphenyl)butanoic acid 270062-97-0 Fmoc-(S)-3-Amino-4-(4-methylphenyl)-butyric acid CAS 270062-97-0 chemical structure

Description

Structurally, (3S)-3-(9H-fluoren-9-ylmethoxycarbonylamino)-4-(4-methylphenyl)butanoic acid (3S)-3-(9H-fluoren-9-ylmethoxycarbonylamino)-4-(p-tolyl)butanoic acid (3S)-3-(9H-fluoren-9-ylmethoxycarbonylamino)-4-(p-tolyl)butyric acid (3S)-3-[[9H-fluoren-9-ylmethoxy(oxo)methyl]amino]-4-(4-methylphenyl)butanoic acid 270062-97-0 Fmoc-(S)-3-Amino-4-(4-methylphenyl)-butyric acid (C26H25NO4) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 15.0, corresponding to approximately 15 ring(s) or double-bond equivalent(s). With a molecular weight of 415.48 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

(3S)-3-(9H-fluoren-9-ylmethoxycarbonylamino)-4-(4-methylphenyl)butanoic acid (3S)-3-(9H-fluoren-9-ylmethoxycarbonylamino)-4-(p-tolyl)butanoic acid (3S)-3-(9H-fluoren-9-ylmethoxycarbonylamino)-4-(p-tolyl)butyric acid (3S)-3-[[9H-fluoren-9-ylmethoxy(oxo)methyl]amino]-4-(4-methylphenyl)butanoic acid 270062-97-0 Fmoc-(S)-3-Amino-4-(4-methylphenyl)-butyric acid (CAS 270062-97-0), molecular formula C26H25NO4 and molecular weight 415.48 g/mol, is a CATO reference standard with documented purity and traceability.

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.

As a certified reference material (CRM), (3S)-3-(9H-fluoren-9-ylmethoxycarbonylamino)-4-(4-methylphenyl)butanoic acid (3S)-3-(9H-fluoren-9-ylmethoxycarbonylamino)-4-(p-tolyl)butanoic acid (3S)-3-(9H-fluoren-9-ylmethoxycarbonylamino)-4-(p-tolyl)butyric acid (3S)-3-[[9H-fluoren-9-ylmethoxy(oxo)methyl]amino]-4-(4-methylphenyl)butanoic acid 270062-97-0 Fmoc-(S)-3-Amino-4-(4-methylphenyl)-butyric acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

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

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