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Ethyl 4-methylbenzoate is an organic compound that belongs to the ester class. It is a clear colorless to pale yellow liquid with a distinctive aromatic odor. Ethyl 4-methylbenzoate is characterized by the presence of a methyl group attached to the benzene ring and an ester functional group formed by the reaction of a carboxylic acid with an alcohol. Ethyl 4-methylbenzoate is known for its chemical stability and reactivity, making it a versatile building block in various chemical reactions and synthesis processes.

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94-08-6 Usage

Uses

Used in Chemical Synthesis:
Ethyl 4-methylbenzoate is used as a key intermediate in the synthesis of various organic compounds, including pharmaceuticals, agrochemicals, and other specialty chemicals. Its reactivity and stability make it a valuable precursor for the production of a wide range of chemical products.
Used in the Synthesis of Ethyl 4-(bromomethyl)benzoate:
Ethyl 4-methylbenzoate is specifically used in the synthesis of ethyl 4-(bromomethyl)benzoate, a compound with potential applications in various chemical and pharmaceutical processes. The synthesis of Ethyl 4-methylbenzoate involves the introduction of a bromine atom to the benzene ring, which can be further utilized in the preparation of other valuable chemical entities.
Used in Flavor and Fragrance Industry:
Due to its aromatic properties, Ethyl 4-methylbenzoate is used as a flavoring agent and fragrance ingredient in the food, beverage, and cosmetics industries. Its pleasant odor and compatibility with other ingredients make it a popular choice for enhancing the sensory experience of various products.
Used in Plastics and Polymer Industry:
Ethyl 4-methylbenzoate can be used as a plasticizer or a monomer in the production of plastics and polymers. Its ability to improve the flexibility and durability of these materials makes it a valuable component in the development of high-performance plastics and polymers for various applications.

Synthesis Reference(s)

Journal of Medicinal Chemistry, 32, p. 1757, 1989 DOI: 10.1021/jm00128a016The Journal of Organic Chemistry, 38, p. 3660, 1973

Check Digit Verification of cas no

The CAS Registry Mumber 94-08-6 includes 5 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 2 digits, 9 and 4 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 94-08:
(4*9)+(3*4)+(2*0)+(1*8)=56
56 % 10 = 6
So 94-08-6 is a valid CAS Registry Number.
InChI:InChI=1/C10H12O2/c1-3-12-10(11)9-6-4-8(2)5-7-9/h4-7H,3H2,1-2H3

94-08-6 Well-known Company Product Price

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  • Alfa Aesar

  • (A10568)  Ethyl p-toluate, 98+%   

  • 94-08-6

  • 50g

  • 285.0CNY

  • Detail
  • Alfa Aesar

  • (A10568)  Ethyl p-toluate, 98+%   

  • 94-08-6

  • 250g

  • 662.0CNY

  • Detail

94-08-6SDS

SAFETY DATA SHEETS

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.Identification

1.1 GHS Product identifier

Product name Ethyl 4-methylbenzoate

1.2 Other means of identification

Product number -
Other names Ethyl p-methylbenzoate

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

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

More Details:94-08-6 SDS

94-08-6Relevant articles and documents

Synthesis, spectral analysis, antibacterial, antifungal, antioxidant and hemolytic activity studies of some new 2,5-disubstituted-1,3,4-oxadiazoles

Adole, Vishnu A.,Chobe, Santosh S.,Dhonnar, Sunil L.,Jagdale, Bapu S.,More, Rahul A.,Sadgir, Nutan V.

, (2022/01/04)

Series of 1,3,4-oxadiazole derivatives (5a–5g and 5h, 5i) were synthesized and characterized by FT-IR, 1H NMR, 13C NMR and HR-MS spectral analysis. All the target compounds were screened for their in vitro antibacterial activity against two Gram-negative bacterial strains namely Escherichia coli (MTCC 405) and Salmonella typhi (MTCC 3224) and two Gram-positive bacterial strains namely Bacillus subtilis (MTCC 1790) and Bacillus megaterium (MTCC 1684) and antifungal activity against Aspergillus niger (MTCC 282), Rhizopus oryzae (MTCC 262), Penicillium chrysogenum (MTCC 974), and Candida albicans (MTCC 183) fungal strains. The synthesized compounds exhibited significant antibacterial and antifungal potential. Three compounds (5e, 5f and 5g) have shown higher antibacterial activity with very low MIC values comparable to streptomycin. According to the SAR study, the antibacterial efficacy can be intensified by substituting fluoro and methyl substituents at the para position in acid hydrazide. The synthesized compounds were also screened for % radical scavenging activity by OH and DPPH assay and found to be good antioxidant agents. Besides, the hemolytic study revealed that the synthesized 1,3,4-oxadiazoles possessed negligible cytotoxicity compared with the standard.

Photophysical and Electrochemical Properties of Highly π-Conjugated Bipolar Carbazole-1,3,4-Oxadiazole-based D-π-A Type of Efficient Deep Blue Fluorescent Dye

Najare, Mahesh Sadashivappa,Patil, Mallikarjun Kalagouda,Tilakraj, Tarimakki Shankar,Yaseen, Mohammed,Nadaf, AfraQuasar A,Mantur, Shivaraj,Inamdar, Sanjeev Ramchandra,Khazi, Imtiyaz Ahmed M

, p. 1645 - 1664 (2021/08/16)

In this contribution, we have designed and synthesized a novel carbazole-1,3,4-oxadiazole based bipolar fluorophore (E)-2-(4-(4-(9H-carbazol-9-yl)styryl)phenyl)-5-(4-(tertbutyl) phenyl)-1,3,4-oxadiazole (CBZ-OXA-IV). Wittig reaction is utilised for the synthesis of the designed bipolar target compound CBZ-OXA-IV.1H NMR, 13C NMR, FT-IR and ESI–MS results confirmed the designed chemical structure of the fluorophore CBZ-OXA-IV. The photophysical properties have been investigated in detail using UV–Vis absorption, photoluminescence spectroscopy. Also, the photoluminescence studies on solid state samples (as thin films) were carried out. The CBZ-OXA-IV dye emits intense deep blue fluorescence with observed absorption and emission maxima occurring are at 353?nm and 470?nm, respectively. Fluorophore CBZ-OXA-IV has shown high Stokes shift of 7052?cm?1. The experimentally measured optical band gap (Egopt) value is found to be 3.01?eV and the fluorescence quantum yields (Φf) is 0.40. The intramolecular charge transfer property of CBZ-OXA-IV dye was examined by using photophysical properties such as absorption, emission in different solvents of different varying polarities. In addition, Density Functional Theory computations are studied in detail including the MEP surface plots and natural bond orbital analysis. The electrochemical properties have been investigated in detail by using cyclic voltammetry measurements. Thermal gravimetric analysis (TGA) and differential scanning calorimetry (DSC) measurement results display a high thermal stability with decomposition temperature (Td5%) 387?°C and a large glass transition temperature (Tg) of 98?°C. The obtained results demonstrated that the novel bipolar fluorophore CBZ-OXA-IV could play an important role in organic optoelectronics and possibly can be utilized as bipolar transport materials for electroluminescence applications in optoelectronic devices/OLEDs. Graphical abstract: [Figure not available: see fulltext.]

Using m icrowave and ultrasound to synthesis of substituted bis-acyl hydrazone derivatives

Mohammed, Salim J.,Sheat, Attallah M.,A.abood, Salih,Yahya, Omar M.

, p. 6423 - 6427 (2021/11/01)

In this paper, some new bis-acyl hydrazone derivatives (4a-f) were prepared through the reaction of carboxylic acid hydrazides with 1,4-diacetylbenzene using classical methods, microwave and ultrasound irradiation methods. These compounds are obtained through a series of reactions where some carboxylic acids react with ethanol first in the presence of concentrated sulfuric acid to give the corresponding esters (2a-f), which when treatment with aqueous hydrazine give carboxylic acid hydrazides (3a-f).thus, The results proved that the use of microwave and ultrasound techniques is much better than the classical methods, as it gave a higher yield, shorter reaction time, and the absence of the use of solvents. All newly synthesized compounds were confirmed by IR, (1H & 13C) NMR spectral analysis and the corresponding reactions were monitored by TLC using the reported eluent.

Design and synthesis of pyrimidine-5-carbonitrile hybrids as COX-2 inhibitors: Anti-inflammatory activity, ulcerogenic liability, histopathological and docking studies

Alfayomy, Abdallah M.,Abdel-Aziz, Salah A.,Marzouk, Adel A.,Shaykoon, Montaser Sh. A.,Narumi, Atsushi,Konno, Hiroyuki,Abou-Seri, Sahar M.,Ragab, Fatma A.F.

, (2021/01/04)

Two new series of 1,3,4-oxadiazole and coumarin derivatives based on pyrimidine-5-carbonitrile scaffold have been synthesized and evaluated for their COX-1/COX-2 inhibitory activity. Compounds 10c, 10e, 10h-j, 14e-f, 14i and 16 were found to be the most potent and selective inhibitors of COX-2 (IC50 0.041–0.081 μM, SI 139.74–321.95). Eight compounds were further investigated for their in vivo anti-inflammatory activity. The most active derivatives 10c, 10j and 14e displayed superior in vivo anti-inflammatory activity (% edema inhibition 39.3–48.3, 1 h; 58.4–60.5, 2 h; 70.8–83.2, 3 h; 78.9–89.5, 4 h) to the reference drug celecoxib (% edema inhibition 38.0, 1 h; 48.8, 2 h; 58.4, 3 h; 65.4, 4 h). These derivatives were also tested for their ulcerogenic liability, compound 10j showed better safety profile with reference to celecoxib while 10c and 14e exhibited mild lesions. Molecular docking studies of 10c, 10j, and 14e in the COX-2 active site revealed similar orientation and binding interactions as selective COX-2 inhibitors with a higher liability to access the selectivity side pocket.

Development of Novel (+)-Nootkatone Thioethers Containing 1,3,4-Oxadiazole/Thiadiazole Moieties as Insecticide Candidates against Three Species of Insect Pests

Cheng, Wanqing,Fan, Jiangping,Guo, Yong,Han, Meiyue,Ma, Nannan,Yan, Xiaoting,Yang, Ruige

, p. 15544 - 15553 (2022/01/03)

To improve the insecticidal activity of (+)-nootkatone, a series of 42 (+)-nootkatone thioethers containing 1,3,4-oxadiazole/thiadiazole moieties were prepared to evaluate their insecticidal activities against Mythimna separata Walker, Myzus persicae Sulzer, and Plutella xylostella Linnaeus. Insecticidal evaluation revealed that most of the title derivatives exhibited more potent insecticidal activities than the precursor (+)-nootkatone after the introduction of 1,3,4-oxadiazole/thiadiazole on (+)-nootkatone. Among all of the (+)-nootkatone derivatives, compound 8c (1 mg/mL) exhibited the best growth inhibitory (GI) activity against M. separata with a final corrected mortality rate (CMR) of 71.4%, which was 1.54- and 1.43-fold that of (+)-nootkatone and toosendanin, respectively; 8c also displayed the most potent aphicidal activity against M. persicae with an LD50 value of 0.030 μg/larvae, which was closer to that of the commercial insecticidal etoxazole (0.026 μg/larvae); and 8s showed the best larvicidal activity against P. xylostella with an LC50 value of 0.27 mg/mL, which was 3.37-fold that of toosendanin and slightly higher than that of etoxazole (0.28 mg/mL). Furthermore, the control efficacy of 8s against P. xylostella in the pot experiments under greenhouse conditions was better than that of etoxazole. Structure-activity relationships (SARs) revealed that in most cases, the introduction of 1,3,4-oxadiazole/thiadiazole containing halophenyl groups at the C-13 position of (+)-nootkatone could obtain more active derivatives against M. separata, M. persicae, and P. xylostella than those containing other groups. In addition, toxicity assays indicated that these (+)-nootkatone derivatives had good selectivity to insects over nontarget organisms (normal mammalian NRK-52E cells and C. idella and N. denticulata fries) with relatively low toxicity. Therefore, the above results indicate that these (+)-nootkatone derivatives could be further explored as new lead compounds for the development of potential eco-friendly pesticides.

Unravelling the anticancer potency of 1,2,4-triazole-N-arylamide hybrids through inhibition of STAT3: synthesis and in silico mechanistic studies

Turky, Abdallah,Bayoumi, Ashraf H.,Sherbiny, Farag F.,El-Adl, Khaled,Abulkhair, Hamada S.

, p. 403 - 420 (2020/08/25)

Abstract: The discovery of potent STAT3 inhibitors has gained noteworthy impetus in the last decade. In line with this trend, considering the proven biological importance of 1,2,4-triazoles, herein, we are reporting the design, synthesis, pharmacokinetic profiles, and in vitro anticancer activity of novel C3-linked 1,2,4-triazole-N-arylamide hybrids and their in silico proposed mechanism of action via inhibition of STAT3. The 1,2,4-triazole scaffold was selected as a privilege ring system that is embedded in core structures of a variety of anticancer drugs which are either in clinical use or still under clinical trials. The designed 1,2,4-triazole derivatives were synthesized by linking the triazole-thione moiety through amide hydrophilic linkers with diverse lipophilic fragments. In silico study to predict cytotoxicity of the new hybrids against different kinds of human cancer cell lines as well as the non-tumor cells was conducted. The multidrug-resistant human breast adenocarcinoma cells (MDA-MB-231) was found most susceptible to the cytotoxic effect of synthesized compounds and hence were selected to evaluate the in vitro anticancer activity. Four of the designed derivatives showed promising cytotoxicity effects against selected cancer cells, among which compound 12 showed the highest potency (IC50 = 3.61?μM), followed by 21 which displayed IC50 value of 3.93?μM. Also, compounds 14 and 23 revealed equipotent activity with the reference cytotoxic agent doxorubicin. To reinforce these observations, the obtained data of in vitro cytotoxicity have been validated in terms of ligand–protein interaction and new compounds were analyzed for ADMET properties to evaluate their potential to build up as good drug candidates. This study led us to identify two novel C3-linked 1,2,4-triazole-N-arylamide hybrids of interesting antiproliferative potentials as probable lead inhibitors of STAT3 with promising pharmacokinetic profiles. Graphic abstract: [Figure not available: see fulltext.]

Design, synthesis, in vitro and in vivo evaluation against MRSA and molecular docking studies of novel pleuromutilin derivatives bearing 1, 3, 4-oxadiazole linker

Liu, Jie,Zhang, Guang-Yu,Zhang, Zhe,Li, Bo,Chai, Fei,Wang, Qi,Zhou, Zi-Dan,Xu, Ling-Ling,Wang, Shou-Kai,Jin, Zhen,Tang, You-Zhi

, (2021/05/17)

A class of pleuromutilin derivatives containing 1, 3, 4-oxadiazole were designed and synthesized as potential antibacterial agents against Methicillin-resistant staphylococcus aureus (MRSA). The ultrasound-assisted reaction was proposed as a green chemistry method to synthesize 1, 3, 4-oxadiazole derivatives (intermediates 85–110). Among these pleuromutilin derivatives, compound 133 was found to be the strongest antibacterial derivative against MRSA (MIC = 0.125 μg/mL). Furthermore, the result of the time-kill curves displayed that compound 133 could inhibit the growth of MRSA in vitro quickly (- 4.36 log10 CFU/mL reduction). Then, compound 133 (- 1.82 log10 CFU/mL) displayed superior in vivo antibacterial efficacy than tiamulin (- 0.82 log10 CFU/mL) in reducing MRSA load in mice thigh model. Besides, compound 133 exhibited low cytotoxicity to RAW 264.7 cells. Molecular docking studies revealed that compound 133 was successfully localized in the binding pocket of 50S ribosomal subunit (ΔGb = -10.50 kcal/mol). The results indicated that these pleuromutilin derivatives containing 1, 3, 4-oxadiazole might be further developed into novel antibiotics against MRSA.

Preparation method of 4-bromomethyl methyl benzoate and derivative thereof

-

Paragraph 0034; 0036, (2021/05/05)

The invention provides a preparation method of methyl 4-bromomethyl benzoate and a derivative thereof, and the method comprises an esterification reaction for converting methyl benzoic acid into methyl benzoate and a bromination reaction for converting the methyl benzoate into the methyl 4-bromomethyl benzoate and the derivative thereof, the brominating agent for the bromination reaction is dibromohydantoin, and the structural formulas of the 4-bromomethyl methyl benzoate and the derivatives thereof are shown in the specification, wherein n1 is equal to 0, 1 or 2; n2 is equal to 1 or 2; according to the preparation method disclosed by the invention, the reaction time can be greatly shortened, the reaction yield is high, and the production efficiency is improved.

Synthesis and biological evaluation of honokiol derivatives bearing 3-((5-phenyl-1,3,4-oxadiazol-2-yl)methyl)oxazol-2(3h)-ones as potential viral entry inhibitors against sars-cov-2

Bai, Li-Ping,Guo, Yong,Jiang, Zhi-Hong,Liu, Jia-Zheng,Meng, Jie-Ru,Xu, Ting,Zheng, Zhi-Yuan

, (2021/09/08)

The 2019 coronavirus disease (COVID-19) caused by SARS-CoV-2 virus infection has posed a serious danger to global health and the economy. However, SARS-CoV-2 medications that are specific and effective are still being developed. Honokiol is a bioactive component from Magnoliae officinalis Cortex with damp-drying effect. To develop new potent antiviral molecules, a series of novel honokiol analogues were synthesized by introducing various 3-((5-phenyl-1,3,4-oxadiazol-2-yl)methyl)oxazol-2(3H)-ones to its molecule. In a SARS-CoV-2 pseudovirus model, all honokiol derivatives were examined for their antiviral entry activities. As a result, 6a and 6p demonstrated antiviral entry effect with IC50 values of 29.23 and 9.82 μM, respectively. However, the parental honokiol had a very weak antiviral activity with an IC50 value more than 50 μM. A biolayer interfero-metry (BLI) binding assay and molecular docking study revealed that 6p binds to human ACE2 protein with higher binding affinity and lower binding energy than the parental honokiol. A competitive ELISA assay confirmed the inhibitory effect of 6p on SARS-CoV-2 spike RBD’s binding with ACE2. Importantly, 6a and 6p (TC50 > 100 μM) also had higher biological safety for host cells than honokiol (TC50 of 48.23 μM). This research may contribute to the discovery of potential viral entrance inhibitors for the SARS-CoV-2 virus, although 6p’s antiviral efficacy needs to be validated on SARS-CoV-2 viral strains in a biosafety level 3 facility.

Copper-mediated simple and direct aerobic oxidative esterification of arylacetonitriles with alcohols/phenols

Dong, Jianyu,Chen, Xiuling,Ji, Fangyan,Liu, Lixin,Su, Lebin,Mo, Min,Tang, Jian-Sheng,Zhou, Yongbo

, (2020/10/20)

A simple and direct aerobic oxidative esterification reaction of arylacetonitriles with alcohols/phenols is achieved in the presence of a copper salt and molecular oxygen, which produces a broad range of aryl carboxylic acid esters in good to high yields. Copper salt plays multiple roles in the transformation, which allows the oxygenation of C-H bond, cleavage of inert C-C bond, and formation of C-O bond in one pot without the assistance of any of the acids, bases, ligands, and so on. The reaction provides a simple, direct, and efficient protocol towards functionalized esters, especially aryl benzoates, from readily available starting materials.

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