Butanoic acid, 4-cyano-3-hydroxy-, butyl ester, (R)- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 141942-86-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,1,9,4 and 2 respectively; the second part has 2 digits, 8 and 6 respectively. Calculate Digit Verification of CAS Registry Number 141942-86: (8*1)+(7*4)+(6*1)+(5*9)+(4*4)+(3*2)+(2*8)+(1*6)=131 131 % 10 = 1 So 141942-86-1 is a valid CAS Registry Number.