Where can i buy Bromphenol blue indicator?

Answer 1

There are quite a number of laboratory supply houses. You will have to check which have a minimum order size. Edmund scientific is more geared to the nonprofessional, but the others might have what you need.

Actually, you might try this one first:

www.chemassociates.com/

;-)

Answer 2

Bromphenol blue, 125ml (4 oz.)
Concentration: 0.4% in water
Formula: C19H10Br4O5S
CAS: 115-39-9

Cat. No. - NC-9966
Price - $14.95

http://secure.sciencecompany.com/Bromphenol-blue-125ml-4-oz-P16072C670.aspx