Liquid Orthazite formula

Hi gang,
I have just about used up the last of my Edwal's Liquid Orthazite. Does anyone know the formula for it? The bottle says that it contains Sodium Sulfite and Benzotriazole, but gives no indication of quantity. I hate the idea of wasting materials trying to replicate something when the answer is there for the asking.
Thanks,
Chris

I would not worry about the exact formula--just get benzotriazole and use it as indicated here: http://stores.photoformulary.com/benzotriazole/

The BZT is the active ingredient for its anti-fog and image tone characteristics.

Benzotriazole is sparingly soluble in plain water but the alkalinity of the sodium sulphite allows more to dissolve.

Approximate concentration here: https://www.photrio.com/forum/threads/edwal-liquid-orthazite.14611/

Thank you to everyone for your help. I greatly appreciate it. Sincerely, Chris