Supplier Page from Aladdin Scientific Corporation for δ-HCH solution
1-Chloroethyl chloroformate from Aladdin Scientific Corporation
2,2-Dimethyl-1,3-dioxacyclohept-5-ene from Aladdin Scientific Corporation
Guanidine Sulfamate from Aladdin Scientific Corporation
Methyl 5-(Hydroxymethyl)-1H-imidazole-4-carboxylate from Aladdin Scientific Corporation