Supplier Page from Aladdin Scientific Corporation for PCB No 52 standard solution
(S)-(-)-7-[N-(1,3-Dithian-2-yl)methylamino]-7'-[bis(3,5-di-t-butylphenyl)phosphino]-2,2',3,3'-tetrahydro-1,1'-spirobindane from Aladdin Scientific Corporation
4-Ethyl-1,3-dimethyl-1H-pyrazol-5-amine sesquihydrate from Aladdin Scientific Corporation
Ethyl 5-methylindole-2-carboxylate from Aladdin Scientific Corporation
thieno[3,2-b]pyridine-6-carboxylic acid from Aladdin Scientific Corporation