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200863-81-6

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200863-81-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 200863-81-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,0,8,6 and 3 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 200863-81:
(8*2)+(7*0)+(6*0)+(5*8)+(4*6)+(3*3)+(2*8)+(1*1)=106
106 % 10 = 6
So 200863-81-6 is a valid CAS Registry Number.

200863-81-6Relevant articles and documents

The synthesis of bisanthraquinone derivatives as DNA bisintercalating agents

Ge, Ping,Russell, Richard A.

, p. 17477 - 17488 (2007/10/03)

The linked bisanthraquinone derivatives 4a-c were synthesized as DNA bisintercalating agents. Starting from the aldehyde 7, the linking chain was introduced via a Grignard reaction to afford the ethers 9a-c. Subsequent anodic oxidation of these products, followed by annelation with the anion of phthalide 5 afforded the linked anthraquinones 12. The target compounds were then obtained by selective esterification with the acid 14, followed by deprotection with anhydrous hydrogen chloride.

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