Supplier Page from Aladdin Scientific Corporation for β-HCH Standard
2,3,4-Trifluorobenzonitrile from Aladdin Scientific Corporation
3,6-Diphenyl-2,5-dihydropyrrolo[3,4-c]pyrrole-1,4-dione from Aladdin Scientific Corporation
4-Hydroxy-4'-nitrobiphenyl from Aladdin Scientific Corporation
4-oxa-7-azaspiro[2.5]octan-6-one from Aladdin Scientific Corporation