PY 110 – isoindolinone yellow PY 110 – isoindolinone yellow This isoindolinone class of pigments were developed in 1946 and commercially available in the 1960s. Manufacturer/ product code: Kremer / 23670Chemical Description: isoindolinoneColor: yellowColor Index: PY 110Date: from 1964 Reflectance Spectroscopy (350-950 nm) Reflectance Spectroscopy (200-1250 nm) Reflectance Spectroscopy (950-1700 nm) XRF Spectroscopy Raman Spectroscopy (532 nm) Raman Spectroscopy (785 nm) Raman Spectroscopy (830 nm) Raman Spectroscopy (1064 nm) FTIR Spectroscopy (non-invasive )