Ethyl 4-nitro-L-phenylalanine
- CAS No.
- 34276-53-4
- Chemical Name:
- Ethyl 4-nitro-L-phenylalanine
- Synonyms
- 4-NO2-Phe-Oet;4-NO2-Phe-Oet-OH;Ethyl 4-nitro-L-phenylalanine;Ethyl 4-nitro-L-phenylalanine,95%;p-Nitro-L-phenylalanine ethyl ester;L-Phenylalanine, 4-nitro-, ethyl ester;ETHYL 4-NITRO-L-PHENYLALANINE USP/EP/BP;(S)-Ethyl 2-amino-3-(4-nitrophenyl)propanoate
- CBNumber:
- CB41519488
- Molecular Formula:
- C11H14N2O4
- Molecular Weight:
- 238.24
- MDL Number:
- MFCD09878820
- MOL File:
- 34276-53-4.mol
SAFETY
Risk and Safety Statements
| Symbol(GHS) | ![]() GHS07 |
|---|---|
| Signal word | Warning |
| Hazard statements | H302-H315-H319-H335 |
| Precautionary statements | P233-P260-P261-P264-P270-P271-P280-P301+P312-P302+P352-P304-P304+P340-P305+P351+P338-P312-P321-P330-P332+P313-P337+P313-P340-P362-P403-P403+P233-P405-P501 |
Ethyl 4-nitro-L-phenylalanine price
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| AstaTech | 60896 | ETHYL 4-NITRO-L-PHENYLALANINE 97% | 34276-53-4 | 1G | $62 | 2026-04-30 | Buy |
| AstaTech | 60896 | ETHYL 4-NITRO-L-PHENYLALANINE 97% | 34276-53-4 | 5G | $186 | 2026-04-30 | Buy |
| aablocks | AA00BZP9 | Ethyl 4-Nitro-L-Phenylalanine 95% | 34276-53-4 | 250mg | $27 | 2026-05-28 | Buy |
| aablocks | AA00BZP9 | Ethyl 4-Nitro-L-Phenylalanine 95% | 34276-53-4 | 1g | $36 | 2026-05-28 | Buy |
| aablocks | AA00BZP9 | Ethyl 4-Nitro-L-Phenylalanine 95% | 34276-53-4 | 5g | $75 | 2026-05-28 | Buy |
Ethyl 4-nitro-L-phenylalanine Chemical Properties,Uses,Production
Synthesis
58816-66-3
34276-53-4
GENERAL STEPS: To a stirred mixed solution of ethyl (S)-2-amino-3-(4-nitrophenyl)propanoate hydrochloride (23.0 g, CAS No. 58816-66-3) in dichloromethane (230 mL) and water (230 mL) was slowly added 46-48% sodium hydroxide solution (7.7 g, 1.1 eq.). The organic and aqueous layers were separated and the aqueous phase was extracted with dichloromethane (100 mL). The combined dichloromethane layers were washed sequentially with water (100 mL) and saturated brine (100 mL). The organic phase was dried over anhydrous magnesium sulfate and concentrated under reduced pressure to give ethyl (S)-2-amino-3-(4-nitrophenyl)propionate in quantitative yield. The resulting free nitro ester was dissolved in fresh dichloromethane (120 mL), spiro[3,5]nonane-1,3-dione (12.9 g, CAS No. 455264-97-8) [Ref: Wasserman, H.H. et al., J. Org. Chem., 38, 1451-1455 (1973)] was added, and the reaction was stirred. After 16 h, the completion of the reaction was confirmed by HPLC monitoring. The reaction mixture was diluted with dichloromethane (120 mL), washed sequentially with 11% sodium bicarbonate solution (100 mL), saturated brine (100 mL) and then dried over anhydrous magnesium sulfate. After removing the solvent under reduced pressure, ethyl (S)-2-amino-3-(4-nitrophenyl)propionate was obtained in quantitative yield (32.4 g as a slowly crystallizing viscous oil; melting point 120 °C). NMR hydrogen spectrum (DMSO-d6) δ: 8.39 (1H, d), 8.17 (2H, d), 7.56 (2H, d), 4.33 (1H, s), 4.31 (1H, m), 4.14 (2H, q), 3.29 (1H, dd), 3.15 (1H, dd), 1.43-1.70 (8H, m), 1.30 (1H , m), 1.15 (3H, t + 1H, m). Mass spectrum (ESI+) m/z: 373.3 [M+H]+.
References
[1] Patent: WO2004/7428, 2004, A1. Location in patent: Page 45
[2] Patent: WO2004/7428, 2004, A1. Location in patent: Page 47
[3] Patent: WO2004/7428, 2004, A1. Location in patent: Page 45-46
Ethyl 4-nitro-L-phenylalanine Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Shanghai Hanhong Scientific Co.,Ltd. | 021-54306202 13764082696 | info@hanhongsci.com | China | 42917 | 64 |
| Hangzhou Sage Chemical Co., Ltd. | +86057186818502 13588463833 | info@sagechem.com | China | 10265 | 58 |
| Nanjing Norris-Pharm Technology Co., Ltd | 13901585132 | sales@norris-pharm.com | China | 8869 | 55 |
| The future of Shanghai Industrial Co., Ltd. | 021-61552785 | sales@shshiji.com | China | 9531 | 55 |
| SynAsst Chemical. | 021-60343070 | China | 12731 | 55 | |
| Shanghai JONLN Reagent Co., Ltd. | 400-0066400 13621662912 | 422131432@qq.com | China | 9970 | 55 |
| Wuxi Zhongkun Biochemical Technology Co., Ltd. | 0510-85629785 18013409632; | sales@reading-chemicals.com | China | 15165 | 58 |
| Finetech Industry Limited | 027-87465837 19945049750 | sales@finetechnology-ind.com | China | 9331 | 58 |
| Hotechem Shanghai Co., Ltd., | 021-34621078 13120882795 | 465106944@qq.com | China | 859 | 56 |
| SanoChem (Chengdu) Tech. Co., Ltd. | 28-87999436 02887999436 | sales@sano-chem.com | China | 3792 | 55 |
View Lastest Price from Ethyl 4-nitro-L-phenylalanine manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
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2026-09-11 | 4-NO2-Phe-Oet
34276-53-4
|
1kg | 98% | 1T+ | Sichuan HongRi Pharma-Tech Co.,Ltd | ||
![]() |
2024-08-27 | ETHYL 4-NITRO-L-PHENYLALANINE
34276-53-4
|
$1.00 | 1KG | 99% | 20T | Shaanxi Dideu Medichem Co. Ltd |
-

- 4-NO2-Phe-Oet
34276-53-4
- 98%
- Sichuan HongRi Pharma-Tech Co.,Ltd
-

- ETHYL 4-NITRO-L-PHENYLALANINE
34276-53-4
- $1.00
- 99%
- Shaanxi Dideu Medichem Co. Ltd





