The reactants for batch 50 are split across two step-lists in the same record (the handwritten notebook steps 1–3 are only partially OCR'd; the Expt Table block gives a cleaner reactant list):

Step I (phosphate ester): Vicaspin LUB 1010 (Bu-EO-PO, HV-62.3, MW-900), 301 g, plus P2O5, 15.82 g — the notebook lists both as raw materials; the Expt Table block lists only "Vicaspin LUB 1010 (R225100845) Bu-EO-PO, HV-62.3/MW-900", 301 g as reactant (P2O5 appears only in the notebook feed step).

Step II (acrylate intermediate): Epomine SP-18, 30 g, and 2-ethylhexyl Acrylate, 70 g (mol wt 184.27) — both role "reactant".

Step III: Phosphate Ester (Step I product), 20 g, role intermediate (not a fresh reactant).

Step IV (from Expt Table): Acrylate (15%), 37.5 g; DMS (1%), 2.52 g; Phosphate ester (85%), 212.5 g — all role "reactant".

Note a discrepancy: the Expt Table step IV lists "Acrylate (15%), 37.5 g", which is inconsistent with the 70 g of 2-ethylhexyl Acrylate charged in the notebook Step II; both are reported as written.

The mole value of P2O5 in batch 50 is 0.111 moles (quantity 15.82 g, mol wt 141.44).