Nicholson Blue B, 2B, 4B, R, 2R, 3R .. Mz.

Nigrosine water soluble No. 10, No. 12. Mz.

Nigrosine Gray Blue, 1, 2, 3, 4

Nile Blue A, 2B, NN, R

Nitrazine Yellow

Nitrazol C

Nitrophenine

Nitrosamine Red

Nitroso Base M 50%

Nitroso Blue MRS

Non Mordant Cotton Blue

Nopaline

Nyanza Black B

Nubian Black..

Oenanthinine

Kell, Math.