(+/-)-(1'α,4'aβ,8'aβ)-4',4'a,7',8',8'a,9'-Hexahydro-1',4'a,8'a-trimethylspiro<1,3-dioxolane-2,2'(1H)-phenanthren>-6'-(3'H)-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 91191-77-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,1,9 and 1 respectively; the second part has 2 digits, 7 and 7 respectively. Calculate Digit Verification of CAS Registry Number 91191-77: (7*9)+(6*1)+(5*1)+(4*9)+(3*1)+(2*7)+(1*7)=134 134 % 10 = 4 So 91191-77-4 is a valid CAS Registry Number.
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