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549501-23-7

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549501-23-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 549501-23-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,4,9,5,0 and 1 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 549501-23:
(8*5)+(7*4)+(6*9)+(5*5)+(4*0)+(3*1)+(2*2)+(1*3)=157
157 % 10 = 7
So 549501-23-7 is a valid CAS Registry Number.

549501-23-7Relevant articles and documents

Synthesis of (+),(-)-neamine and their positional isomers as potential antibiotics

Ryu, Do Hyun,Tan, Choon-Hong,Rando, Robert R.

, p. 901 - 903 (2007/10/03)

The syntheses of (+)-neamine 1, (-)-neamine ent-1 and their positional isomers 2, 3, ent-2 and ent-3 are reported as potential new scaffolds for novel aminoglycoside antibiotics. These isomers exhibit similar inhibitory activities, as shown using an in vitro translation assay. A simple model is proposed to explain this lack of stereospecific binding to the ribosomal RNA.

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