Cyclopentene, 1,3-dimethyl-2-(1-propynyl)- (9CI) is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 126133-14-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,6,1,3 and 3 respectively; the second part has 2 digits, 1 and 4 respectively. Calculate Digit Verification of CAS Registry Number 126133-14: (8*1)+(7*2)+(6*6)+(5*1)+(4*3)+(3*3)+(2*1)+(1*4)=90 90 % 10 = 0 So 126133-14-0 is a valid CAS Registry Number.