You may have seen my post a few days ago about two pigments in the Winsor & Newton range which are changing due to index colour PR206 (Quinacridone Pyrrolidone) being discontinued. Many of you love these two colours so went out and bought some before they disappear. The two colours were W&N Professional Quinacridone Gold and W&N Permanent Alizarin Crimson. Both have index colour PR206 at present. The Quinacridone Gold will now include PR179 (previously PR206), PV19 and PY250 and has changed its name to Transparent Gold Deep. PR179 is also the index colour for Perylene Maroon.
Following on from this I thought it would be helpful to do some research on other brands to see which of those would be affected too. I have compiled a list below for you all.
Colours by name:
Winsor & Newton
Permanent Alizarin Crimson
Quinacridone Gold
Brown Madder
Daniel Smith
Quinacridone Burnt Scarlet
Sennelier
Quinacridone Gold
Crimson Lake ( not the Crimson Lake Alizarin)
Schmincke
Madder Brown
Indian Red
QoR
Quinacridone Burnt Orange
Quinacridone Crimson
MaimeriBlu
Brown Madder (Alizarin)
Avignon Orange
Daler Rowney Artists
Transparent Red Brown
M. Graham – None!
Gallo Hand-made
Quinacridone Chestnut
I hope this is helpful and that you manage to stock up before they all run out. Jackson’s Art in Gloucester has already run out of the W&N two!
jibotanicals 
Isn’t pigment PR206 known as “quinacridone maroon”? I thought “quinacridone pyrrolidone” was an un-numbered pigment used, for example, in W&N permanent carmine. Or am I totally confused??
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Hi Janice, yes PR206 is a red/maroon. You’re right QP is un-indexed and in Permanent Carmine. PR206 is discontinued so a few pigments across brands are going to be affected
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