Supplier Page from Thermo Fisher Scientific for Copper(II) methoxide, typically 98% (metals basis)
2-Mesitylenesulfonyl chloride, 99% from Thermo Fisher Scientific
3-Iodo-L-tyrosine, 97% from Thermo Fisher Scientific
L(-)-Menthol, 99.5% from Thermo Fisher Scientific
L(+)-Arabinose, 99+% from Thermo Fisher Scientific