A first result from a new formula:

Solution A:
Dissolve 5g sodium hydroxide in 90ml water, add the contents of 16 capsules (8g) of Paracetamol/Tylenol.Stir with gentle heating in a stainless steel pot,filter through cotton wool, make up to 100ml.
Store in a 100ml sealed bottle 7 days at room temperature to complete the hydrolysis and make the primary developing agent (p-aminophenol).
Note, sodium hydroxide is caustic, hazardous:
http://www.ccohs.ca/oshanswers/chemi...hydroxide.html
It is sold as Lye or as Caustic Soda.

LS-1c
Water............................................. ................800ml
Ascorbic acid (vitamin C powder).........................15g
Solution A above............................................. .100ml
Sodium Carbonate anhydrous..............................50g
Water to................................................ .............1L
Filter 2x through cotton wool.
pH=10.4 +/- 0.1 Develop for Xtol 1+3 time from massive development table at digitaltruth .com

Sodium Carbonate anhydrous may be replaced by Washing Soda.
In the US, Arm &Hammer Super Washing Soda is close to monohydrate so take 50x1.2=60g Soda.
In the UK, Washing Soda is usually the decahydrate so take 50x2.7=135g Soda.

After 16 days in a 1L glass bottle the pH was still 10.4.The developer still worked,see attachment.
I hope to report later how the developer keeps.

Grain obtained was similar to that with Beutler developer.The large grain is because the specification that all ingredients should be obtainable from local shops means sodium sulfite cannot be added.