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209911-52-4

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209911-52-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 209911-52-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,9,9,1 and 1 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 209911-52:
(8*2)+(7*0)+(6*9)+(5*9)+(4*1)+(3*1)+(2*5)+(1*2)=134
134 % 10 = 4
So 209911-52-4 is a valid CAS Registry Number.

209911-52-4Relevant articles and documents

Strong aphicidal activity of GlcNAc(β1→4)Glc disaccharides: Synthesis, physiological effects, and chitinase inhibition

Dussouy, Christophe,Bultel, Laurent,Saguez, Julien,Cherqui, Anas,Khelifa, Mounia,Grand, Eric,Giordanengo, Philippe,Kovensky, José

supporting information; experimental part, p. 10021 - 10028 (2012/09/25)

The synthesis of four GlcNAc(β1→4)Glc disaccharides containing 2-O-acetyl and/or 6-sulfate groups was performed in high yields with total 1,2-trans stereoselectivity. These disaccharides were evaluated as candidates for insect chitinase inhibition and aph

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