4,4'-Diaminobiphenyl-d8 (Rings-d8) Back Catalog number: 10448.12-K-IO Manufacturer: CHIRON AS Availability: 3 weeks Price on request - + Recommended 79493 Perfluoroheptanoic acid Price on request 57552 Tellurium (Te) Price on request 682526 4-Hydroxybenzoic acid, 1000mg Price on request