NIST Chemistry WebBook NIST Standard Reference Database SRD Number 69 Last update to data: 2023 DOI: https://doi.org/10.18434/T4D303 View: Search Options, Models and Tools, Special Data Collections, Documentation, Changes, Notes Credits Neutral Thermochemical data compiled by Hussein Y. Afeefy, Joel F. Liebman, Stephen E. Stein, Donald R. Burgess, Jr. Entropy and Heat Capacity of Organic Compounds