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1097638-57-7

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1097638-57-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1097638-57-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,9,7,6,3 and 8 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1097638-57:
(9*1)+(8*0)+(7*9)+(6*7)+(5*6)+(4*3)+(3*8)+(2*5)+(1*7)=197
197 % 10 = 7
So 1097638-57-7 is a valid CAS Registry Number.

1097638-57-7Downstream Products

1097638-57-7Relevant articles and documents

Direct preparation of unsymmetrical difunctionalized cyclen derivatives by an ugi multicomponent reaction

Piersanti, Giovanni,Remi, Francesco,Fusi, Vieri,Formica, Mauro,Giorgi, Luca,Zappia, Giovanni

supporting information; experimental part, p. 417 - 420 (2009/07/18)

(Chemical Equation Presented) A new and efficient synthetic protocol for the preparation of unsymmetrical difunctionalized cyclen and its close derivatives using a modified Ugi reaction (N-split Ugi) is described. The scope of this methodology is further

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