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3-Acetoxy-5-methoxystilbene

$1,280

  • Brand : BIOFRON

  • Catalogue Number : BN-O1571

  • Specification : 98%(HPLC)

  • CAS number : 71144-78-0

  • Formula : C17H16O3

  • Molecular Weight : 268.3

  • PUBCHEM ID : 14132235

  • Volume : 5mg

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Catalogue Number

BN-O1571

Analysis Method

Specification

98%(HPLC)

Storage

-20℃

Molecular Weight

268.3

Appearance

Cryst.

Botanical Source

This product is isolated and purified from the herbs of Jatropha curcas

Structure Type

Category

SMILES

CC(=O)OC1=CC(=CC(=C1)OC)C=CC2=CC=CC=C2

Synonyms

trans-3,5-Dihydroxystilbene/3,5-dihydroxystilbene/3-Methoxy-5-[(E)-2-phenylvinyl]phenyl acetate/3,5-TRANS-DIHYDROXYSTILBENE/Pinosylvinmonomethyletheracetat/Pisylvin/Phenol, 3-methoxy-5-[(E)-2-phenylethenyl]-, acetate

IUPAC Name

Density

1.1±0.1 g/cm3

Solubility

Soluble in Chloroform,Dichloromethane,Ethyl Acetate,DMSO,Acetone,etc.

Flash Point

176.5±20.3 °C

Boiling Point

415.6±34.0 °C at 760 mmHg

Melting Point

InChl

InChl Key

IJXZGYLGHOYXMS-CMDGGOBGSA-N

WGK Germany

RID/ADR

HS Code Reference

Personal Projective Equipment

Correct Usage

For Reference Standard and R&D, Not for Human Use Directly.

Meta Tag

provides coniferyl ferulate(CAS#:71144-78-0) MSDS, density, melting point, boiling point, structure, formula, molecular weight etc. Articles of coniferyl ferulate are included as well.>> amp version: coniferyl ferulate

No Technical Documents Available For This Product.

PMID

31058881

Abstract

The principal objective of this study was to determine the anti-staphylococcal potential of ethanol extracts of propolis (EEPs). A total of 20 samples of propolis collected from apiaries located in different regions of Poland were used in the study. The two-fold broth microdilution method revealed some important differences in the antimicrobial activity of investigated EEPs. Up to the concentration of 4096 µg/mL no activity was observed against Gram-negative bacteria (E. coli and P. aeruginosa). Staphylococci exhibited much higher susceptibility. The highest efficiency observed for EEP12 and EEP20 (MIC values ranged between 32 and 256 µg/mL). However, the achievement of bactericidal effect usually required higher concentrations. In the case of clinical isolates of S. aureus MBC values for EEP12 and EEP20 ranged from 512 to 1024 µg/mL. The HPLC analysis revealed that these two products contained a higher concentration of flavonoids (flavonols, flavones, and flavanones) compared to other investigated EEPs. In checkerboard test, a synergistic anti-staphylococcal effect was observed for the action of EEP20 in combination with amikacin, kanamycin, gentamycin, tetracycline, and fusidic acid (all these antibiotics inhibit protein synthesis). Moreover, the investigated EEPs effectively eradicated staphylococcal biofilm. The obtained results clearly confirm the high anti-staphylococcal potential of propolis harvested in Polish apiaries.

KEYWORDS

propolis, S. aureus, biofilm, synergism, flavonoids

Title

The Anti-Staphylococcal Potential of Ethanolic Polish Propolis Extracts

Author

Katarzyna Grecka,1 Piotr M. Kuś,2 Piotr Okińczyc,2 Randy W. Worobo,3 Justyna Walkusz,1 and Piotr Szweda1,*

Publish date

2019 May

PMID

27610324

Abstract

Nutrients and phytoplankton dynamics in the traditional fishing grounds off Tiruchendur coast, Gulf of Mannar, India revealed a clear seasonal trend influenced by prevailing monsoon system in east coast of India. A total of 73 species of phytoplankton were identified from the fishing grounds, revealed higher abundance in summer months compared to other seasons. Among the three stations, maximum phytoplankton abundance was recorded in station 2 followed by stations 1 and 3. The phytoplankton abundance ranged from 2.85 × 104 to 6.34 × 104 cells/l, with higher and lower value observed during summer and post monsoon season respectively. Chl-a showed similar seasonal trend with phytoplankton abundance and fluctuated from 0.4 to 6.8 mg/m3 with high concentrates were recorded during summer. Primary productivity was ranged from 13.8 to 28.7 mg, C/m2/day with maximum and minimum during summer and monsoon respectively. It was understood from the study, ammonia could be acting as the limiting nutrient for phytoplankton growth, while the role of nitrate, nitrite, phosphate and silicate remained insignificant. At the time of diatom population proliferates there was a drop in the nutrient levels was observed during the study. The water current flowing from north to south during the northeast monsoon, nutrient rich fresh water discharged from Tamirabarani River influencing the nutrient dynamics in the fishing grounds that are ultimately increasing the nutrients concentration during northeast monsoon.

KEYWORDS

Population abundance, Nutrients, Fishing grounds, Diatoms, Gulf of Mannar

Title

Nutrients and phytoplankton dynamics in the fishing grounds off Tiruchendur coastal waters, Gulf of Mannar, India

Author

J. Selvin Pitchaikani, A. P. Lipton

Publish date

2016

PMID

29850084

Abstract

The title chalcone compounds, C27H18O (I) and C33H20O (II), were synthesized using a Claisen-Schmidt condensation. Both compounds display an s-trans configuration of the enone moiety. The crystal structures feature inter­molecular C—H⋯O and C—H⋯π inter­actions. Quantum chemical analysis of density functional theory (DFT) with a B3LYP/6-311++G(d,p) basis set has been employed to study the structural properties of the compound. The effect of the inter­molecular inter­actions in the solid state are responsible for the differences between the experimental and theoretical optimized geometrical parameters. The small HOMO-LUMO energy gap in (I) (exp : 3.18 eV and DFT: 3.15 eV) and (II) (exp : 2.76 eV and DFT: 2.95 eV) indicates the suitability of these compounds for optoelectronic applications. The inter­molecular contacts and weak contributions to the supra­molecular stabilization are analysed using Hirshfeld surface analysis.

KEYWORDS

chalcone, crystal structure, DFT, UV-Vis, Hirshfeld surface

Title

The effect of the fused-ring substituent on anthracene chalcones: crystal structural and DFT studies of 1-(anthracen-9-yl)-3-(naphthalen-2-yl)prop-2-en-1-one and 1-(anthracen-9-yl)-3-(pyren-1-yl)prop-2-en-1-one

Author

Dian Alwani Zainuri, Ibrahim Abdul Razak, Suhana Arshad

Publish date

2018 May 1;


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