1β,2,3,4,4a,4bα,5,6,7,9β,10,10aα-dodecahydro-9α-hydroxy-1α,4aβ-dimethyl-2,7-phenanthrenedione 2-ethylene acetal is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 80989-75-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,0,9,8 and 9 respectively; the second part has 2 digits, 7 and 5 respectively. Calculate Digit Verification of CAS Registry Number 80989-75: (7*8)+(6*0)+(5*9)+(4*8)+(3*9)+(2*7)+(1*5)=179 179 % 10 = 9 So 80989-75-9 is a valid CAS Registry Number.