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Raffinose hydrate, extra pure, SLR..
Rapamycin, from Streptomyces hygroscopicus..
Rennet, pure..
Resazurin tablets, technical..
Resorcinol, extra pure, SLR..
Resorcinol, for analysis..
Rhodamine B, pure, C.I. 45170..
Rhodizonic acid sodium salt, pure..
Riboflavin, (Electrophoresis)..
Riboflavin, for electrophoresis..
Rifampin..