Cyclopentanecarboxylic acid, 3-formyl-, methyl ester, trans- (9CI) is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 139585-46-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,5,8 and 5 respectively; the second part has 2 digits, 4 and 6 respectively. Calculate Digit Verification of CAS Registry Number 139585-46: (8*1)+(7*3)+(6*9)+(5*5)+(4*8)+(3*5)+(2*4)+(1*6)=169 169 % 10 = 9 So 139585-46-9 is a valid CAS Registry Number.