2 different recipes. Brands sell different pigment mixtures under this name, so they won't all look or mix alike. Compare the pigments below; the most common is PY65 Arylide Yellow RN.
A hue: a substitute for Cadmium Yellow, made with other pigments.
Who makes it
PY73 Arylide Yellow GX1
- Daler-Rowney Georgian (student)Student No. D111014616
Sizes are the ones each line is sold in; marks a size only some colors come in. Check the store for a particular color.