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Amino acids are the building blocks of peptides and proteins. All amino acids contain an amine group, a carboxylic acid group, and a side-chain that varies for each amino acid. The side chains differ in polarity and pKa and are important to both protein structure and function. Amino acids can be classified into groups based on the chemical properties of their side chains: aliphatic, aromatic, basic, and acidic, and neutral. L-stereochemistry overwhelmingly predominates amino acids found in nature. Twenty amino acids are directly encoded by the genetic code of eukaryotes. We offer a full line of amino acids in different grades and purities. We also offer a large range of amino acid derivatives to aid in the study of how amino acid modifications affect protein activity, structure and function. To review all biochemicals offered on this website check the main categories under Life Sciences which include both Thermo Scientific and Alfa Aesar product options.

  • 2'-Deoxycytidine hydrochloride, synthetic, Affymetrix/USB
  • alpha-Ketoglutaric acid, free acid, 98+%, Thermo Scientific
  • beta-Alanine, 98+%, Ultrapure, Thermo Scientific
  • Creatine phosphate disodium salt tetrahydrate, 98+%, Thermo Scientific
  • DL-Phenylalanine, 99+% (dry basis), Thermo Scientific
  • DL-Serine, non-animal, 98.5+%, Thermo Scientific
  • Glutathione, oxidized, 95+%, Thermo Scientific
  • Glycine, 98.5-101.5% (dry basis), Thermo Scientific
  • Glycine, 99+%, Molecular Biology Grade, Ultrapure, Thermo Scientific
  • Glycylglycine, 98.5+%, Thermo Scientific
  • L-alpha-Amino-N-Butyric acid, 98+%, Thermo Scientific
  • L-Arginine hydrochloride, 98.5-101.5%, Thermo Scientific
  • L-Asparagine, anhydrous, 98.5+%, Ultrapure, Thermo Scientific
  • L-Asparagine monohydrate, 98+%, Ultrapure, Affymetrix/USB
  • L-Aspartic acid sodium salt monohydrate, 98+% (dry basis), Thermo Scientific
  • L-Cysteine hydrochloride monohydrate, 98.5-101.5% (dry basis), Thermo Scientific
  • L-Cystine, 98.5-101.5% (dry basis), Thermo Scientific
  • L-Glutamic acid, 98.5-101.5% (dry basis), Ultrapure, Thermo Scientific
  • L-Glutamine, 98.5+%, Ultrapure, Thermo Scientific
  • L-Histidine monohydrochloride monohydrate, 98+%, Thermo Scientific
  • L-Leucine, 98.5-101.5% (dry basis), Ultrapure, Thermo Scientific
  • L-Lysine hydrochloride, 98.5+% (dry basis), Ultrapure, Thermo Scientific
  • L-Threonine, 98.5+%, Ultrapure, Thermo Scientific
  • L-Tryptophan, 98.5-101.5% (dry basis), Thermo Scientific


Life Science

Metals & Materials


Analytical & Labware