4,4’-DDD Back Catalog number: 79017 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 71975 cis-Decahydronaphthalene Price on request M0220 4,4'-Diaminodiphenylmethane, >98%, 25g Price on request DF-LCS-A Mass-Labelled PCDD/PCDF Solution/Mixture , 1.2ml , nonane Price on request