Peptone,Yeast extract,L-Glutamine,L-tryptophan,L-alanine,L-aspartic acid,L-methionine,L-threonine,Xanthan gum,Gellan gum,Bovine,serum albumin,Trishydroxymethylaminomethane,IPTG,Sodium pyruvate Peptone Basic Information CAS: 73049-73-7 MF: C13H24O4 MW: 244.32726 EINECS: 615-895-9 Mol File: 73049-73-7.mol Peptone Structure Peptone Chemical Properties solubility H2O: 50 mg/mL form powder color Dark cream powder Odor Odorless PH 6.5-7.5 (2% in H2O) Water Solubility Soluble in water. Insoluble in alcohol. Sensitive Moisture Sensitive & Hygroscopic EPA Substance Registry System Peptones (73049-73-7)