Re: alizarin crimson and lightfastness
Yes, I see that now in the color chart I downloaded from the Sennelier website...one star. Now that I look closer on the tube (with a magnifying glass) I see the rating was not 1, but roman numeral I. Some other meaning perhaps. But most of the tubes I have from Sennilier said the same thing, or else n.r. (not rated).
According to the Daniel Smith catalog Sennelier rates this color one * which, in their system is the lowest rank.