Ribonuclease A CAS NO.9001-99-4

1.Enterprise standard 2.No less than 50Kunitz u/mg 3.Porcine or bovine pancreas 4.White or pale yellow lyophilized powder Ribon…

1.Enterprise standard 2.No less than 50Kunitz u/mg 3.Porcine or bovine pancreas4.White or pale yellow lyophilized powder RibonucleaseSource Bovine Pancrease General descriptionPancreatic Ribonuclease (RNase I) catalyzes cleavage of the phosphodiester bond between the 5'-ribose of a nucleotide and the phosphate group attached to the 3'-ribose of an adjacent pyrimidine nucleotide forming a 2',3'-cyclic phosphate which may then be hydrolyzed to the corresponding 3'-nucleoside phosphate. Ribonuclease A has a molecular weight of 13,700 daltons. It operates in an optimum pH range of 7.0-7.5. The high purity Ribonuclease of Beijing Geyuantianrun Bio-tech Co., Ltd.. is purified by re-crystallization, and then by Chromatography and ultra-filtration.Specification ItemsSpecificationStandardAppearanceWhite lyophilized powderEnterprise StandardSolution TransparentNot more opalescent than ref.suspension 2Enterprise StandardLoss on dryingNo more than 5.0%USP33DNANot detectableEnterprise StandardActivityNo less than 50kunitz units/mg,calculated on the dried basisEnterprise Standard StorageSealed, Dark, at temperature 2-8°C