Supplier Page from Thermo Fisher Scientific for Camphene, 75%, remainder mainly alpha-fenchene
Hydroquinone, 99% from Thermo Fisher Scientific
L(+)-Glutamic acid monosodium salt monohydrate, 99% from Thermo Fisher Scientific
Maleic acid, 99% from Thermo Fisher Scientific
Mineral oil, for spectroscopy, suitable for nujol mull preparations for IR-spect from Thermo Fisher Scientific