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 PY35 Cadmium Yellow.
Who makes it
PY35 Cadmium Yellow8
- PY35LF ISeries D18 ml tube* · 40 ml tube · 60 ml tube* · 125 ml tube · 225 ml tube · 475 ml tin* · 1000 ml tin*About Old Holland
- Rembrandt Artists' Oil Colour No. 207
- Maimeri Puro Oil Colours No. 082
- Lukas 1862 Artists' Oil No. 0025
PY37 Cadmium Yellow1
- Holbein Artists' Oil Color No. H249
Sizes are the ones each line is sold in; marks a size only some colors come in. Check the store for a particular color.