PR 172 – erythrosin B PR 172 – erythrosin B Manufacturer/ product code: GTI labs / CAS 15905-32-5Chemical Description: erythrosineColor: redColor Index: PR 172Date: 1876 Reflectance Spectroscopy (350-950 nm) Reflectance Spectroscopy (200-1250 nm) Reflectance Spectroscopy (950-1700 nm) XRF Spectroscopy Raman Spectroscopy (785 nm) Raman Spectroscopy (830 nm) Raman Spectroscopy (1064 nm) FTIR Spectroscopy (non-invasive )