N-Acetyl-DL-phenylalanine β-naphthyl ester
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N-Acetyl-DL-phenylalanine β-naphthyl ester is an aromatic amino acid ester, which functions as a chromogenic substrate for chymotrypsin and microbial serine proteases such as subtilisin.
For research use only. We do not sell to patients.
- Purity : 96.46%
- CAS No.: 20874-31-1
- Formula: C21H19NO3
- Molecular Weight:333.38
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Storage:Powder -20°C, 3 years , 4°C, 2 years ; In solvent -80°C, 6 months , -20°C, 1 month
Biological Activity
Description
In Vitro
N-Acetyl-DL-phenylalanine β-naphthyl ester is hydrolyzed in the body by the esterase (APNEase) catalytic action at neutral pHs. APNEase level involves with many muscle wasting conditions suggest the possibility that it may be involved in the turnover and pathological breakdown of muscle proteins[1].
N-Acetyl-DL-phenylalanine β-naphthyl ester (0.75 mM, DMF; 3 min) as substrate and o-Dianisidine tetrazotized (oD) as the dye, allow the assessment of protease inhibitory activity directly from the yeast P. pastoris expression media[2].
N-Acetyl-DL-phenylalanine β-naphthyl ester (0.75 mM, DMF; 3 min) (2.4 g/L) provides a visualization result with stained agar gel via the diazo coupling of the β-naphtol produced by the enzymatic hydrolysis of N-Acetyl-DL-phenylalanine β-naphthyl ester (APNE). Circular zones containing inhibitor-proteinase complexes remain coloress while the region containing only proteinase shows a bright pink-purple color[3].
N-Acetyl-DL-phenylalanine β-naphthyl ester (5 mg/40 mL) has application: determine the class of peptidase in mouse plasma. The enzyme was displayed by immunoprecipitation with antiserum in radial immunodiffusion. After removal of non-precipitated serum and other constituents by washing in excess saline, individual rings of immunoprecipitate were incubated in a solution of a protease inhibitor, followed by washing and staining with the chromogenic substrate (NAPBNE and fast blue B), the picture can be photographed over direct lighting[4].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Emission (Em)
468
Excitation (Ex)
380
Chemical Information
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CAS No. 20874-31-1
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Appearance Solid
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Molecular Weight 333.38
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Formula C21H19NO3
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Color White to off-white
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SMILES
CC(NC(C(OC1=CC2=CC=CC=C2C=C1)=O)CC3=CC=CC=C3)=O
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Powder -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month
Solvent & Solubility
In Vitro:
DMSO : 40 mg/mL (119.98 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
Purity & Documentation
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Data Sheet (276 KB)
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SDS (393 KB)
- English - EN (393 KB)
- Français - FR (393 KB)
- Deutsch - DE (393 KB)
- Norwegian - NO (393 KB)
- Español - ES (393 KB)
- Swedish - SV (393 KB)
- Italian - IT (393 KB)
- Korean - KR (393 KB)
- Portuguese - PT (393 KB)
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Handling Instructions (2659 KB)
References
[1]. Kar NC, et al. Acetyl-DL-phenylalanine beta-naphthyl esterase activity in human muscle disease. Biochem Med. 1978 Aug. 20(1):63-9. [Content Brief]
[2]. Yakoby N, et al. A simple method to determine trypsin and chymotrypsin inhibitory activity. J Biochem Biophys Methods. 2004 Jun 30. 59(3):241-51. [Content Brief]
[3]. Kourteva I, et al. Assay for enzyme inhibition: detection of natural inhibitors of trypsin and chymotrypsin. Anal Biochem. 1987 May 1. 162(2):345-9. [Content Brief]
[4]. Darani HY, et al. An association between Schistosoma mansoni worms and an enzymatically-active protease/peptidase in mouse blood. Parasitology. 2008 Apr. 135(4):467-72. [Content Brief]
[5]. P Tsung, et al. Isolation of an N-acetyl-DL-phenylalanine beta-naphthyl esterase from rabbit peritoneal polymorphonuclear leukocytes. Biochim Biophys Acta. 1975 Sep 22;403(1):98-105. [Content Brief]
Complete Stock Solution Preparation Table
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
| Optional Solvent | Concentration Solvent Mass | 1 mg | 5 mg | 10 mg | 25 mg |
|---|---|---|---|---|---|
| DMSO | 1 mM | 2.9996 mL | 14.9979 mL | 29.9958 mL | 74.9895 mL |
| 5 mM | 0.5999 mL | 2.9996 mL | 5.9992 mL | 14.9979 mL | |
| 10 mM | 0.3000 mL | 1.4998 mL | 2.9996 mL | 7.4990 mL | |
| 15 mM | 0.2000 mL | 0.9999 mL | 1.9997 mL | 4.9993 mL | |
| 20 mM | 0.1500 mL | 0.7499 mL | 1.4998 mL | 3.7495 mL | |
| 25 mM | 0.1200 mL | 0.5999 mL | 1.1998 mL | 2.9996 mL | |
| 30 mM | 0.1000 mL | 0.4999 mL | 0.9999 mL | 2.4997 mL | |
| 40 mM | 0.0750 mL | 0.3749 mL | 0.7499 mL | 1.8747 mL | |
| 50 mM | 0.0600 mL | 0.3000 mL | 0.5999 mL | 1.4998 mL | |
| 60 mM | 0.0500 mL | 0.2500 mL | 0.4999 mL | 1.2498 mL | |
| 80 mM | 0.0375 mL | 0.1875 mL | 0.3749 mL | 0.9374 mL | |
| 100 mM | 0.0300 mL | 0.1500 mL | 0.3000 mL | 0.7499 mL |