(4aβ,4bα,5α,7aα,7bα)-4,4a,4b,5,6,7,7a,7b-octahydro-4,4a,6,6-tetramethyl-5-hydroxycyclopenta<4,5>pentaleno<6,6a-b>oxiren-3-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 74145-67-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,1,4 and 5 respectively; the second part has 2 digits, 6 and 7 respectively. Calculate Digit Verification of CAS Registry Number 74145-67: (7*7)+(6*4)+(5*1)+(4*4)+(3*5)+(2*6)+(1*7)=128 128 % 10 = 8 So 74145-67-8 is a valid CAS Registry Number.
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