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689284-03-5

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689284-03-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 689284-03-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,9,2,8 and 4 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 689284-03:
(8*6)+(7*8)+(6*9)+(5*2)+(4*8)+(3*4)+(2*0)+(1*3)=215
215 % 10 = 5
So 689284-03-5 is a valid CAS Registry Number.

689284-03-5Downstream Products

689284-03-5Relevant articles and documents

A novel approach to the synthesis of cytotoxic C2-C3 unsaturated pyrrolo[2,1-c][1,4]benzodiazepines (PBDs) with conjugated acrylyl C2-substituents

Chen, Zhizhi,Gregson, Stephen J.,Howard, Philip W.,Thurston, David E.

, p. 1547 - 1549 (2007/10/03)

A concise synthesis of three novel C2-C3 unsaturated pyrrolo[2,1-c][1,4] benzodiazepine analogues (18-20) containing conjugated acrylyl C2-substituents is reported that utilises Heck coupling to install the C2-acrylyl side chains. These analogues possess

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