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121683-12-3

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121683-12-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 121683-12-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,6,8 and 3 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 121683-12:
(8*1)+(7*2)+(6*1)+(5*6)+(4*8)+(3*3)+(2*1)+(1*2)=103
103 % 10 = 3
So 121683-12-3 is a valid CAS Registry Number.

121683-12-3Relevant articles and documents

5,5-Diaryldipyrromethanes: Syntheses and anion binding properties

Gowri Sreedevi,Thomas, Ajesh P.,Salini,Ramakrishnan,Anju,Derry Holaday,Reddy,Suresh,Srinivasan

scheme or table, p. 5995 - 5999 (2011/11/28)

A two-step synthesis of 5,5-diaryldipyrromethanes in good yields is described. The adopted synthetic strategy can be used to tune the substituent at the meso-carbon very easily by choosing the Grignard reagent of interest. Further, the influence of the in

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