PY 108 – anthrapyrimidine yellow PY 108 – anthrapyrimidine Yellow Its formula is very close to that on authentic Indian yellow Manufacturer/ product code: Kremer / 23370Chemical Description: heterocyclic anthraquinoneColor: yellowColor Index: PY 108Date: — Reflectance Spectroscopy (350-950 nm) Reflectance Spectroscopy (200-1250 nm) Reflectance Spectroscopy (950-1700 nm) XRF Spectroscopy Raman Spectroscopy (532 nm) Raman Spectroscopy (1064 nm) FTIR Spectroscopy (non-invasive )