Pentalene, octahydro-2,5-dinitro-, (2-alpha-,3a-ba-,5-alpha-,6a-ba-)- (9CI) is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 169525-05-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,9,5,2 and 5 respectively; the second part has 2 digits, 0 and 5 respectively. Calculate Digit Verification of CAS Registry Number 169525-05: (8*1)+(7*6)+(6*9)+(5*5)+(4*2)+(3*5)+(2*0)+(1*5)=157 157 % 10 = 7 So 169525-05-7 is a valid CAS Registry Number.