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117604-68-9

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117604-68-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 117604-68-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,6,0 and 4 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 117604-68:
(8*1)+(7*1)+(6*7)+(5*6)+(4*0)+(3*4)+(2*6)+(1*8)=119
119 % 10 = 9
So 117604-68-9 is a valid CAS Registry Number.

117604-68-9Relevant articles and documents

FACILE ACCESS TO CHIRAL OXIRANE BUILDING-BLOCKS FROM (R)-(+)-MALIC ACID: SYNTHESIS OF (2R)-(+)-1,2-EPOXY-4-(TRIPHENYLMETHOXY)BUTANE

Fabio, Romano Di,Misiti, Domenico

, p. 209 - 210 (2007/10/02)

The synthesis of (2R)-(+)-1,2-epoxy-4-(triphenylmethoxy)butane from (2R)-(+)-1,2,4-butanetriol through the preferential protection at C4, followed by tosylation at C1 and finally by selective oxyrane-ring formation, is described.

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