202520-55-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 202520-55-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,2,5,2 and 0 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 202520-55:
(8*2)+(7*0)+(6*2)+(5*5)+(4*2)+(3*0)+(2*5)+(1*5)=76
76 % 10 = 6
So 202520-55-6 is a valid CAS Registry Number.
202520-55-6Relevant articles and documents
ONE-POT SYNTHESIS OF SQUARAMIDES
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Page/Page column 42, (2016/01/25)
The present invention refers to the first one-pot synthesis of squaramides. The one-pot synthesis of squaramides described herein is an easy and straightforward procedure to obtain squaramide derivatives which saves energy, avoids time consuming purificat