Cas 239083-75-1,D-galacturonic acid (E)-2-nitrophenylhydrazone

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Check Digit Verification of cas no

The CAS Registry Mumber 239083-75-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,3,9,0,8 and 3 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 239083-75:
(8*2)+(7*3)+(6*9)+(5*0)+(4*8)+(3*3)+(2*7)+(1*5)=151
151 % 10 = 1
So 239083-75-1 is a valid CAS Registry Number.

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239083-75-1Relevant articles and documents

Reductive cyclization of carbohydrate 2-nitrophenylhydrazones to chiral functionalized 1,2,4-benzotriazines and benzimidazoles

Andersch, Jens,Sicker, Dieter

, p. 589 - 594 (2007/10/03)

The 2-nitrophenylhydrazones 2 of D-arabino-2-hexulopyranosonic acid, D- arabinose, D-galactose and D-galacturonic acid are used as precursors to form chiral functionalized 1,2,4-benzotriazines and benzimidazoles by reductive cyclization methods. Catalytic

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239083-75-1