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297687-34-4

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297687-34-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 297687-34-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,9,7,6,8 and 7 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 297687-34:
(8*2)+(7*9)+(6*7)+(5*6)+(4*8)+(3*7)+(2*3)+(1*4)=214
214 % 10 = 4
So 297687-34-4 is a valid CAS Registry Number.

297687-34-4Relevant articles and documents

1,5-Anhydro-D-fructose as chiral building block: A novel approach to 1-deoxymannojirimycin

Maier, Peter,Andersen, Soren Moller,Lundt, Inge

, p. 827 - 830 (2007/10/03)

A novel six-step synthesis of 1-deoxymannojirimycin from 1,5-anhydro-D-fructose in 35% overall yield is reported. The key steps are nucleophilic piperidine ring formation and subsequent Lewis acid induced pyran ether cleavage. Georg Thieme Verlag Stuttgart.

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