Fmoc-D-Trp-OPfp CAS 136554-94-4
| CAS No. | 136554-94-4 |
| Molecular Formula | C32H21F5N2O4 |
| Molecular Weight | 592.51 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Fmoc-D-Trp-OPfp (CAS 136554-94-4) is a high-purity analytical reference standard with the molecular formula C32H21F5N2O4 and a molecular weight of 592.51 g/mol.
Based on its molecular formula C32H21F5N2O4, Fmoc-D-Trp-OPfp contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 592.51 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 | C32H21F5N2O4 |
| Molecular Weight | 592.51 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 21.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Related Fmoc Standards
- Fmoc-Trp-OPfp (CAS 86069-87-6)
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- Fmoc-D-Glu(OtBu)-OPfp (CAS 200616-21-3)
- Fmoc-Glu(OtBu)-OPfp (CAS 86061-04-3)
- Fmoc-D-lle--Me-D-Leu-D- Leu-OH (CAS CATO-C4X-2226174)
- Fmoc-Val-Cys(Psi(Dmp,H)pro)-OH (CAS 1926163-08-7)
Recommended Standards
- N1-(5-Bromopyridin-2-yl)-N2-((1S,2R,4S)-4-(dimethylcarbamoyl)-2-(5-methyl-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridine-2-carboxamido)cyclohexyl)oxalamide (Edoxaban Impurity) (CAS 775280-48-3)
- N1,N1,N4,N4-Tetrakis(4-nitrophenyl)-benzene-1,4-diamine (CAS 3283-05-4)
- Calcium D-gluconate lactobionate (CAS 97635-31-9)
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- Piribedil (CAS 3605-01-4)
- Ethyl 1-methyl-3-[(phenylsulfanyl)methyl]-1H-thieno[2,3-c]pyrazole-5-carboxylate (CAS 400087-17-4)
- N-(2-Bromo-4,6-difluorophenyl)-2-((4-(4-chlorophenyl)-5-(pyridin-4-yl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 476483-83-7)
- Boc-N-Me-Phe(4-Cl)-OH (CAS 179033-68-2)
- 2-Hydroxy-3,3-dimethylbutanenitrile (CAS 33350-17-3)
- 3’-Chloro-4’-fluoroacetophenone (CAS 2923-66-2)
- 24:0(2S-OH) Ceramide (CAS 112317-53-0)
- 4-(5-Amino-1,3,4-thiadiazol-2-yl)-1-phenylpyrrolidin-2-one (CAS 1142202-31-0)
- (S)-3-Amino-3-(4-fluorophenyl)propanamide (CAS 1307159-01-8)
- Neuropeptide Y (22-36) (CAS 119019-65-7)
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