Welcome to LookChem.com Sign In|Join Free


  • or


Post Buying Request

5557-83-5 Suppliers

Recommended suppliersmore

  • Product
  • FOB Price
  • Min.Order
  • Supply Ability
  • Supplier
  • Contact Supplier

5557-83-5 Usage


L-Alanine benzyl ester hydrochloride is a white solid benzoxazine derivative with versatile applications in the pharmaceutical and chemical industries. It is known for its role as an additive in the formulation of microemulsions for topical applications and as a reagent in the preparation of collagenase inhibitors.


Used in Pharmaceutical Industry:
L-Alanine benzyl ester hydrochloride is used as an additive for the microemulsion formulation of acyclovir, a medication used to treat viral infections. Its role in the formulation enhances the stability and effectiveness of the drug for topical applications.
Used in Chemical Synthesis:
L-Alanine benzyl ester hydrochloride serves as a reagent in the preparation of collagenase inhibitors, which are essential in the development of treatments for various conditions related to the breakdown of collagen, such as arthritis and other connective tissue disorders.
Used in Organic Chemistry:
L-Alanine benzyl ester (ALAB) may be used as an organic reagent in various chemical reactions, contributing to the synthesis of different compounds.
Used in Microemulsions:
L-Alanine benzyl ester hydrochloride is used as a cationic charge inducer in microemulsions, which are mixtures of oil, water, and surfactants. Its presence in these systems improves the stability and performance of the microemulsion, making it suitable for various applications in the pharmaceutical and cosmetic industries.

Check Digit Verification of cas no

The CAS Registry Mumber 5557-83-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,5,5 and 7 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 5557-83:
115 % 10 = 5
So 5557-83-5 is a valid CAS Registry Number.

5557-83-5 Well-known Company Product Price

  • Brand
  • (Code)Product description
  • CAS number
  • Packaging
  • Price
  • Detail
  • TCI America

  • (A2771)  L-Alanine Benzyl Ester Hydrochloride  >98.0%(HPLC)(T)

  • 5557-83-5

  • 5g

  • 390.00CNY

  • Detail
  • TCI America

  • (A2771)  L-Alanine Benzyl Ester Hydrochloride  >98.0%(HPLC)(T)

  • 5557-83-5

  • 25g

  • 1,560.00CNY

  • Detail



According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017


1.1 GHS Product identifier

Product name L-Alanine Benzyl Ester Hydrochloride

1.2 Other means of identification

Product number -
Other names L-Alanine benzyl ester hydrochloride

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:5557-83-5 SDS

5557-83-5Relevant articles and documents

N-transfer reagent and method for preparing the same and its application


Page/Page column 22-23; 47-50; 51-54, (2021/06/25)

Provided are a novel N-transfer reagent and a method for preparing the same and its application. The N-transfer reagent is represented by the following Formula (I): The various novel N-transfer reagents of the present invention can be quickly prepared by employing different nitrobenzene precursors. The N-transfer reagents can directly convert a variety of amino compounds into diazo compounds under mild conditions. Particularly, the N-transfer reagents can facilitate the synthesis of the diazo compounds. The application of synthesizing diazo compounds of the present invention can greatly decrease the difficulty in operation, increase the safety during experiments, reduce the cost of production and the environmental pollution, and enhance the industrial value of diazo compounds.

Identification of a 4-fluorobenzyl L-valinate amide benzoxaborole (AN11736) as a potential development candidate for the treatment of Animal African Trypanosomiasis (AAT)

Akama, Tsutomu,Zhang, Yong-Kang,Freund, Yvonne R.,Berry, Pamela,Lee, Joanne,Easom, Eric E.,Jacobs, Robert T.,Plattner, Jacob J.,Witty, Michael J.,Peter, Rosemary,Rowan, Tim G.,Gillingwater, Kirsten,Brun, Reto,Nare, Bakela,Mercer, Luke,Xu, Musheng,Wang, Jiangong,Liang, Hao

, p. 6 - 10 (2017/11/27)

Novel L-valinate amide benzoxaboroles and analogues were designed and synthesized for a structure-activity-relationship (SAR) investigation to optimize the growth inhibitory activity against Trypanosoma congolense (T. congolense) and Trypanosoma vivax (T. vivax) parasites. The study identified 4-fluorobenzyl (1-hydroxy-7-methyl-1,3-dihydrobenzo[c][1,2]oxaborole-6-carbonyl)-L-valinate (5, AN11736), which showed IC50 values of 0.15 nM against T. congolense and 1.3 nM against T. vivax, and demonstrated 100% efficacy with a single dose of 10 mg/kg against both T. congolense and T. vivax in mouse models of infection (IP dosing) and in the target animal, cattle, dosed intramuscularly. AN11736 has been advanced to early development studies.

Discovery of 2'-α-C-Methyl-2'-β-C-fluorouridine Phosphoramidate Prodrugs as Inhibitors of Hepatitis C Virus

Zeng, Debin,Zhang, Rui,Nie, Quandeng,Cao, Lin,Shang, Luqing,Yin, Zheng

supporting information, p. 1197 - 1201 (2016/12/18)

2′-α-C-Methyl-2′-β-C-fluorouridine and its phosphoramidate prodrugs were synthesized and evaluated for their inhibitory activity against HCV. The structure?activity relationship analysis of the phosphoramidate moiety found that 17m, 17q, and 17r exhibit potent activities against HCV, with EC50 values of 1.82 ± 0.19, 0.88 ± 0.12, and 2.24 ± 0.22 μM, respectively. The docking study revealed that the recognition of the 2′-β-F by Arg158, 3′-OH by N291, and the Watson?Crick pairing with the template allowed 23 to form the in-line conformation necessary for its incorporation into the viral RNA chain.

Post a RFQ

Enter 15 to 2000 letters.Word count: 0 letters

Attach files(File Format: Jpeg, Jpg, Gif, Png, PDF, PPT, Zip, Rar,Word or Excel Maximum File Size: 3MB)


What can I do for you?
Get Best Price

Get Best Price for 5557-83-5