can't read?
M 2079 (OTTO) Methylene blue tablets - used for preparing methylene blue solution for the bacteriological examination of graded milks.Dissolve 1 tablet in 800 ml water. Use 1 ml of this solution for 10 ml of milk sample.
M 2079 (OTTO) Methylene blue tablets Cas 61-73-4 - used in certain diagnostic procedures.