-ol
-yne
1,3,2,4-Dithiadiphosphetane 2,4-disulfides
1,3-dipole
122 iron arsenide
2,3,7,8-Tetrachlorodibenzofuran
2,3-sigmatropic rearrangement
2-(Dicyanomethylene)croconate
3-Deoxyanthocyanidin
4-Aminoquinoline
4-Hydroxy-2-alkylquinoline
4-Piperidone
A15 phases
A3 coupling reaction
ACD/ChemSketch
AD-mix
ANRORC mechanism
API oil–water separator
AVN-322
Aalto University School of Chemical Engineering
Abderhalden's drying pistol
Abiological nitrogen fixation using homogeneous catalysts
Absolute configuration
Absorption (chemistry)
Absorption band
Absorption spectroscopy
Abundances of the elements (data page)
Acemannan
Acene
Acetate
Acetogenin
Acetyl group
Acheson process
Achmatowicz reaction
Acid
Acid dye
Acid egg
Acid neutralizing capacity
Acidity regulator
Acidulant
Acid–base reaction
Acid–base titration
Acridone alkaloids
Acrylate polymer
Acrylic embedment
Acrylic paint
Acta Biochimica et Biophysica Sinica
Actinide chemistry
Actinium-225
Actinocene
Actinometer
Action spectrum
Activated carbon
Activated complex
Activation energy
Activation of cyclopropanes by transition metals
Active ester
Acyl azide
Acyl cyanide
Acyl group
Acyl halide
Acylal
Acyloin
Acylsilane
Acylsugar
Acylurea
Adatom
Addition reaction
Adduct
Adhesive
Adhesive remover
Aerobic methane production
Aerogel
Aerosol
Affinity electrophoresis
Aflatoxin total synthesis
Age of Earth
Agelasimine
Aggregated diamond nanorod
Agitated Nutsche Filter
Aglycone
Agricultural chemistry
Agrochemical
Air freshener
Air pollutant concentrations
Ajmalan
Albright–Goldman oxidation
Alchemical symbol
Alchemy in the medieval Islamic world
Alclad
Alcohol (chemistry)
Alcohol burner
Alcohol intoxication
Aldol
Aldol condensation
Aldonic acid
Alembic
Alexander Butlerov Chemistry Institute
Alicyclic compound
Aliphatic compound