216751-90-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 216751-90-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,6,7,5 and 1 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 216751-90:
(8*2)+(7*1)+(6*6)+(5*7)+(4*5)+(3*1)+(2*9)+(1*0)=135
135 % 10 = 5
So 216751-90-5 is a valid CAS Registry Number.
216751-90-5Relevant academic research and scientific papers
Method for producing substituted thiopyridines
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, (2008/06/13)
A process for preparing thiopyridines of the formula I where the substituents are as defined in the description.