TABLE III

Compounds for Spike Recovery

Sepharose ResinReason for Selection
    TolueneICH Q3C Class 2 solvent with a 890 ppm limit
    EpichlorohydrinHazardous material known to cause stomach, eye, and skin irritation; chromosome aberrations; adverse changes in blood and cancer
    Glycidyltrimethylammonium chlorideHazardous material known to be toxic if swallowed and a suspected carcinogen
Phenyl Sepharose Resin
    EpichlorohydrinHazardous material known to cause stomach, eye, and skin irritation; chromosome aberrations; adverse changes in blood and cancer
    EthanolAn ICH Q3C Class 3 compound with a 5000 ppm limit
    3-phenoxy-1,2-propanediolThe primary cleaved ligand and toxic
Sephacryl Resin
    FormaldehydeDegradation product, toxic and carcinogenic, a hazardous substance identified in CCR, Title 8
Bioprocess Bags
    AcetateMajor extractable, causes pH shift also an ICH Q3C Class 3 with a 5000 ppm limit
    FormateMajor extractable, causes pH shift also an ICH Q3C Class 3 with a 5000 ppm limit
    Phenol, 2,4-bis(1,1-dimethylethyl)It is the primary cleaved ligand and has known toxicity
TC Tech Bag
    CaprolactamNylon monomer, toxic, can cause neurological symptoms
PVDF Filters
    Isopropyl alcoholMajor extractable, also an ICH Q3C Class 3 with a 5000 ppm limit
    AcetoneMajor extractable, also an ICH Q3C Class 3 with a 5000 ppm limit
Silicone Tubing
    SiliconMajor extractable from tubing