P3H4T1H4A1L1O1C3Y4A1N1I1N1E1
27 points
PHTHALOCYANINE is validvalid
[n PHTHALOCYANINES]
any of a group of green and blue organic colouring matters of great fastness and brilliance, also PHTHALOCYANIN [n -S]
[n PHTHALOCYANINES]
any of a group of green and blue organic colouring matters of great fastness and brilliance, also PHTHALOCYANIN [n -S]