Rifampicin,suitable for plant cell culture, BioReagent, >=95% (HPLC), powder or crystals

Retinol,synthetic, >=95% (HPLC), (Powder or Powder with Lumps)

Rotenone,>=95%

Streptozocin,>=75% a-anomer basis, >=98% (HPLC), powder

Spermidine,BioReagent, Molecular Biology, suitable for cell culture, >=98%

Silibinin,>=98% (HPLC)

Sulfaphenazole,>=98%

Suberic acid bis(N-hydroxysuccinimide ester),>=95%, powder

Spermidine trihydrochloride,>=98% (TLC)

Spermidine,>=99% (GC)

Spermine,>=97%

Stearic acid,Grade I, >=98.5% (capillary GC)