(R)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-4-(2-hydroxyphenyl)butanoic acid CAS 1260604-37-2
| CAS No. | 1260604-37-2 |
| Molecular Formula | C25H23NO5 |
| Molecular Weight | 417.45 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
(R)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-4-(2-hydroxyphenyl)butanoic acid (CAS 1260604-37-2) is a high-purity analytical reference standard with the molecular formula C25H23NO5 and a molecular weight of 417.45 g/mol.
Structurally, (R)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-4-(2-hydroxyphenyl)butanoic acid (C25H23NO5) contains a flavonoid 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 417.45 g/mol, it falls into the moderately-high-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 Formula | C25H23NO5 |
| Molecular Weight | 417.45 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 1 |
Recommended Standards
- (R)-3-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-2-(4-hydroxybenzyl)propanoic acid (CAS 1260592-39-9)
- (S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-4-(3-hydroxyphenyl)butanoic acid (CAS 1260609-92-4)
- (R)-3-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-2-(2-hydroxybenzyl)propanoic acid (CAS 1260592-38-8)
- (R)-3-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-2-(3-hydroxybenzyl)propanoic acid (CAS 1260611-62-8)
- 2-Amino-2-(1-methyl-1H-pyrazol-3-yl)acetic acid hydrochloride (CAS 2137510-85-9)
- (1-Methyl-2-(4-(trifluoromethyl)phenyl)pyrrolidin-3-yl)methanamine (CAS 1334148-15-0)
- 1-(2-Methoxyphenyl)-2-methylpropan-1-one (CAS 74786-53-1)
- 3-(2,2-Difluoroethoxy)azetidine (CAS 1342279-77-9)
- (5-Allyl-2-methoxyphenyl)boronic acid (CAS 1227400-91-0)
- 5-(Chloromethyl)-4-methylpyridin-2-amine (CAS 1355233-09-8)
- Samarium(III) sulfate (CAS 15123-65-6)
- 2-(4-(Trifluoromethoxy)phenyl)-7,8-dihydro-3H-pyrano[4,3-d]pyrimidin-4(5H)-one (CAS 1450790-56-3)
- Methyl 3-bromo-4-chloropicolinate (CAS 64303-78-2)
- Semaglutide impurity 37 (CAS CATO-C4X-222637)
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