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450408-66-9

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450408-66-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 450408-66-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,5,0,4,0 and 8 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 450408-66:
(8*4)+(7*5)+(6*0)+(5*4)+(4*0)+(3*8)+(2*6)+(1*6)=129
129 % 10 = 9
So 450408-66-9 is a valid CAS Registry Number.

450408-66-9Relevant articles and documents

2-Acylpyridazin-3-ones: Novel mild and chemoselective acylating agents for amines

Kang, Young-Jin,Chung, Hyun-A,Kim, Jeum-Jong,Yoon, Yong-Jin

, p. 733 - 738 (2007/10/03)

2-Acyl-4,5-dichloropyridazin-3-ones served as excellent novel N-acylating reagents for amines under neutral conditions in organic solvent. They are convenient, chemoselective and easy to handle stable N-acylating reagents of amines.

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