Isoquinolinium, 5-cyano-2-methyl- (9CI) is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 749143-83-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,4,9,1,4 and 3 respectively; the second part has 2 digits, 8 and 3 respectively. Calculate Digit Verification of CAS Registry Number 749143-83: (8*7)+(7*4)+(6*9)+(5*1)+(4*4)+(3*3)+(2*8)+(1*3)=187 187 % 10 = 7 So 749143-83-7 is a valid CAS Registry Number.
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