ɪn nˈaɪntiːnhˈʌndɹɪd ˈeɪtiːn, hiː ɹᵻsˈiːvd ðə nˈɪkəlz mˈɛdəl ʌvðɪ ɐmˈɛɹɪkən kˈɛmɪkəl səsˈaɪəɾi ɪn ɹˌɛkəɡnˈɪʃən ʌv hɪz wˈɜːk ˌɔn pˈɪɹɪmˌɪdiːnz.
In 1918, he received the Nichols Medal of the American Chemical Society in recognition of his work on pyrimidines.