. . . I got this partial bottle in a box of old darkroom stuff for free out of a garage in Albany NY about 10 years ago. It was old then. The labels were in German, it was ADOX with a small print in English "Identical with the product in Europe under the Adenol name". I used it about 6 or 7 years ago and it was fine. Did two 35mm rolls today of tri x 400 with Rodinal at 50 to 1. Almost a total failure The negatives came out solid medium gray with a negative image on the emulsion side. 
I was surprised because I have read that Rodinal is pretty much immortal. LOL . . . the bottle had sediment on the bottom so i gave it a good shake. I noticed when I poured it into the tank that the sediment was still separated . . . Oh Well . . live and learn.
No big loss because these were test rolls for some 35 mm cameras I was going to sell . . .

I was surprised because I have read that Rodinal is pretty much immortal. LOL . . . the bottle had sediment on the bottom so i gave it a good shake. I noticed when I poured it into the tank that the sediment was still separated . . . Oh Well . . live and learn.
No big loss because these were test rolls for some 35 mm cameras I was going to sell . . .
I have no idea how old it was . . I thought it was immortal 
