7-Hydroxycoumarin: Fluorescent Natural Coumarin
7-Hydroxycoumarin is a stable fluorescent natural coumarin compound widely applied in fluorescence analysis, cosmetics and fine chemical synthesis.
Jun 3，2026 Natural Products
DL-Mandelic Acid: Racemic Aromatic Hydroxy Acid
DL-Mandelic acid is a stable racemic hydroxy acid widely used for chiral resolution and drug synthesis and it can be converted into low-toxicity ionic liquids.
Jun 3，2026 Organic Acids
Is the formate ion (HCO2-) polar?
Unlike molecules with fixed bonding frameworks, HCO2- relies entirely on resonances to achieve maximum structural stability.
Jun 2，2026 Biochemical Engineering
Lewis Structure and Polarity of Sulfur Difluoride
Sulfur difluoride (SF2) is a polar molecule. Its Lewis structure consists of a central sulfur atom (S) and two surrounding fluorine atoms (F).
Jun 2，2026 API
Lewis Structure of Aluminum Fluoride
Aluminum fluoride (molecular formula AlF3) is a nonpolar molecule. As a monomer, its Lewis structure is a highly symmetrical planar equilateral triangle.
Jun 2，2026 API
Lewis Structure and Resonance Structure of Ozone (O3)
Ozone (O3) is a reactive allotrope of oxygen, widely distributed in the Earth's stratosphere and troposphere.
Jun 2，2026 Inorganic chemistry
Dibutylamine: Secondary Amine Applied in Catalysis and Gas Detection
Dibutylamine is a reactive secondary amine widely used in rubber industry and lubricant additives which acts as an eco-friendly high-efficiency catalyst.
Jun 2，2026 Chemical Materials
Erioglaucine Disodium Salt: Water-Soluble Triphenylmethane Anionic Dye
Erioglaucine disodium salt is an anionic dye with outstanding tolerance to heat and acid-base, applied in food coloring, cosmetics and biological staining.
Jun 2，2026 Dyes and Pigments
Isobutylene: Polymerization and Peptide Modification Applications
Isobutylene is a flammable olefin gas widely used to synthesize rubber, resins and fine chemicals which serves as rigid graft for cysteine peptide cyclization.
Jun 2，2026 API
Methyl Formate: Reactive Ester Serving as Industrial Raw Material
Methyl formate features dual ester and aldehyde reactivity, widely used as solvent and synthetic raw material and owns desirable hydrogen storage density.
Jun 2，2026 Organic Chemistry