Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Molecules and Compounds

Molecules and Compounds

Atoms and Molecules

Organic Compounds

Organic Compounds

All living things are formed mostly of carbon compounds called organic compounds. The category of organic compounds includes both natural and synthetic compounds that contain carbon. Although a single, precise definition has yet to be identified by the chemistry community, most agree that a defining trait of organic molecules is the presence of carbon as the principal element, bonded to hydrogen and other carbon atoms. However, some carbon-containing compounds such as carbonates, cyanides, and...

Elements and Compounds

Elements and Compounds

Pure substances consist of only one type of matter. A pure substance can be an element or a compound. An element consists of only one type of atom, while a compound consists of two or more types of atoms held together by a chemical bond.
Elements
Elements are classified as atomic or molecular based on the nature of their basic units. They are unique forms of matter with specific chemical and physical properties that cannot break down into smaller substances by ordinary chemical reactions. There...

Solubility of Ionic Compounds

Solubility of Ionic Compounds

Solubility is the measure of the maximum amount of solute that can be dissolved in a given quantity of solvent at a given temperature and pressure. Solubility is usually measured in molarity (M) or moles per liter (mol/L). A compound is termed soluble if it dissolves in water.

Classification of Elements and Compounds

Classification of Elements and Compounds

Pure substances consist of only one type of matter. A pure substance can be an element or a compound. An element consists of only one type of atom, while a compound consists of two or more types of atoms held together by a chemical bond. Elements are classified as atomic or molecular based on the nature of their basic units.
Compounds are pure substances composed of two or more elements in fixed, definite proportions. Compounds are classified as ionic or molecular (covalent) based on the bonds...

Coordination Compounds and Nomenclature

Coordination Compounds and Nomenclature

In most main group element compounds, the valence electrons of the isolated atoms combine to form chemical bonds that satisfy the octet rule. For instance, the four valence electrons of carbon overlap with electrons from four hydrogen atoms to form CH4. The one valence electron leaves sodium and adds to the seven valence electrons of chlorine to form the ionic formula unit NaCl (Figure 1a). Transition metals do not normally bond in this fashion. They primarily form coordinate covalent bonds, a...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Surfactant-Assisted Construction of Covalent Organic Frameworks.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2025

Same author

Indirect Effect Model with Surge Function for Describing Melatonin Circadian Rhythm: Quantitative Comparison and Application between Normal Sleepers and Patients with Delayed Sleep-Wake Phase Disorder.

Neuroendocrinology·2025

Same author

PARP Inhibitors Rechallenge in Patients With Recurrent Ovarian Cancer: A Multicentre Real-World Study in China.

BJOG : an international journal of obstetrics and gynaecology·2025

Same author

Correlation between visceral fat area and cardiac valve calcification in hemodialysis patients.

Frontiers in cardiovascular medicine·2025

Same author

Extrapolation of Midazolam Disposition in Neonates Using Physiological-Based Pharmacokinetic/Pharmacodynamic Modeling.

Clinical pharmacology in drug development·2025

Same author

Binding mechanism of metal ions (Ca<sup>2+</sup>, Cu<sup>2+</sup> and Mg<sup>2+</sup>) with tetrapeptide FFDR: A combined experimental and quantum chemistry approach.

Food chemistry·2025

Search research articles

Related Experiment Video

Updated: Feb 11, 2026

Author Spotlight: Development and Evaluation of a Compound Acne Rodent Model Using C. acnes and Oleic Acid

Author Spotlight: Development and Evaluation of a Compound Acne Rodent Model Using C. acnes and Oleic Acid

Published on: November 1, 2024

[Two new compounds from Smilax glaucochina].

Ji-Cheng Shu¹, Min Liu¹, Gen-Hua Zhu¹

¹Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China.

Zhongguo Zhong Yao Za Zhi = Zhongguo Zhongyao Zazhi = China Journal of Chinese Materia Medica

|April 21, 2018

Summary

Researchers identified two novel compounds, glaucochinarol A and glcacochinaside A, from Smilax glaucochina. Six known compounds were also isolated, expanding the phytochemical understanding of this plant species.

Keywords:

Smilax glaucochina glaucochinarol A glcacochinaside A phenylpropane glycoside sesquiterpene

More Related Videos

On-line Analysis of Nitrogen Containing Compounds in Complex Hydrocarbon Matrixes

On-line Analysis of Nitrogen Containing Compounds in Complex Hydrocarbon Matrixes

Published on: August 5, 2016

Early Viral Entry Assays for the Identification and Evaluation of Antiviral Compounds

Early Viral Entry Assays for the Identification and Evaluation of Antiviral Compounds

Published on: October 29, 2015

Related Experiment Videos

Last Updated: Feb 11, 2026

Author Spotlight: Development and Evaluation of a Compound Acne Rodent Model Using C. acnes and Oleic Acid

Author Spotlight: Development and Evaluation of a Compound Acne Rodent Model Using C. acnes and Oleic Acid

Published on: November 1, 2024

On-line Analysis of Nitrogen Containing Compounds in Complex Hydrocarbon Matrixes

On-line Analysis of Nitrogen Containing Compounds in Complex Hydrocarbon Matrixes

Published on: August 5, 2016

Early Viral Entry Assays for the Identification and Evaluation of Antiviral Compounds

Early Viral Entry Assays for the Identification and Evaluation of Antiviral Compounds

Published on: October 29, 2015

Area of Science:

Phytochemistry
Natural Product Chemistry
Organic Chemistry

Background:

Smilax glaucochina is a plant species with a history of traditional medicinal use.
The phytochemical investigation of Smilax species is crucial for discovering new bioactive compounds.

Purpose of the Study:

To isolate and characterize novel and known chemical constituents from Smilax glaucochina.
To contribute to the understanding of the chemical diversity within the Smilax genus.

Main Methods:

Isolation of compounds using chromatographic techniques.
Structure elucidation employing Nuclear Magnetic Resonance (NMR) and Mass Spectrometry (MS).
Comparison with published data for identification of known compounds.

Main Results:

Two new compounds, a sesquiterpene (glucochinarol A) and a phenylpropane glycoside (glcacochinaside A), were identified.
Six known compounds, including trichothecolone, were isolated and identified.
Compounds 3-8 were reported from this species for the first time, expanding the known chemical profile of Smilax glaucochina.

Conclusions:

The study successfully identified new and known chemical entities from Smilax glaucochina.
The findings enhance the phytochemical database of Smilax species and may provide a basis for further pharmacological investigations.