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20444-30-8

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20444-30-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20444-30-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,4,4 and 4 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 20444-30:
(7*2)+(6*0)+(5*4)+(4*4)+(3*4)+(2*3)+(1*0)=68
68 % 10 = 8
So 20444-30-8 is a valid CAS Registry Number.

20444-30-8Relevant articles and documents

Atropisomerism in Diarylamines: Structural Requirements and Mechanisms of Conformational Interconversion

Clayden, Jonathan,Costil, Romain,Duarte, Fernanda,Sterling, Alistair J.

, p. 18670 - 18678 (2020)

In common with other hindered structures containing two aromatic rings linked by a short tether, diarylamines may exhibit atropisomerism (chirality due to restricted rotation). Previous examples have principally been tertiary amines, especially those with

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