Hexane-1,6-diammonium iodide – Sigma-Aldrich

Price range: RM789.00 through RM2,755.00

4-Nitrophenyl butyrate, ≥98% (Sigma-Aldrich)

Price range: RM455.00 through RM2,735.00

Spiro-TTB, ≥99% (HPLC) – Sigma-Aldrich

Price range: RM1,492.00 through RM2,724.00