1,4-Cyclohexanedimethanol Bis(L-phenylalanine) Ester 205654-87-1 Bis-L-phenylalanylcyclohexanedimethanol L-Phenylalanine 1,4-Cyclohexanediylbis(methylene) Ester CAS 205654-87-1
| CAS No. | 205654-87-1 |
| Molecular Formula | C26H34N2O4 |
| Molecular Weight | 438.56 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1,4-Cyclohexanedimethanol Bis(L-phenylalanine) Ester 205654-87-1 Bis-L-phenylalanylcyclohexanedimethanol L-Phenylalanine 1,4-Cyclohexanediylbis(methylene) Ester (CAS 205654-87-1) is a high-purity analytical reference standard with the molecular formula C26H34N2O4 and a molecular weight of 438.56 g/mol.
1,4-Cyclohexanedimethanol Bis(L-phenylalanine) Ester 205654-87-1 Bis-L-phenylalanylcyclohexanedimethanol L-Phenylalanine 1,4-Cyclohexanediylbis(methylene) Ester (C26H34N2O4) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, 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.
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.
Physical & Chemical Properties
| Molecular Formula | C26H34N2O4 |
| Molecular Weight | 438.56 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2015 |
| Nitrogen Atoms | 2 |
Related Cyclohexanedimethanol Standards
- 1,4-Cyclohexanedimethanol Dilaurate (CAS 135025-34-2)
- Poly(1,4-cyclohexanedimethanol adipate) (CAS 33478-30-7)
- Cis 1,4-cyclohexanedimethanol (CAS 3236-47-3)
- trans-1,2-Cyclohexanedimethanol (CAS 25712-33-8)
- trans-1,4-Cyclohexanedimethanol (CAS 3236-48-4)
- 1,4-Cyclohexanedimethanol (cis- and trans- mixture) (CAS 105-08-8)
Recommended Standards
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- N,N-Dimethyl-3-(3-oxo-3,4-dihydro-2H-1,4-benzoxazin-4-yl)propanamide (CAS 1089531-54-3)
- 3-Amino-4-ethylhexan-1-ol (CAS 945723-37-5)
- D-(-)-2-Phenylglycine D5 (CAS 1246817-98-0)
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- 2,6-Bis(1-methyl-1H-benzo[d]imidazol-2-yl)pyridin-4(1H)-one (CAS 533928-74-4)
- (Ser(PO3H2)202,Thr(PO3H2)205)-Tau Peptide (194-213) trifluoroacetate salt (CAS 2022956-55-2)
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