3,5-dihydroxy-3,4,4a,5-tetramethyl-1,3,4,4a,5,8a-hexahydro-1,4-etheno-naphthalene-2,6-dione is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 109451-36-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,4,5 and 1 respectively; the second part has 2 digits, 3 and 6 respectively. Calculate Digit Verification of CAS Registry Number 109451-36: (8*1)+(7*0)+(6*9)+(5*4)+(4*5)+(3*1)+(2*3)+(1*6)=117 117 % 10 = 7 So 109451-36-7 is a valid CAS Registry Number.