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(1aS)-4aα,5α-Epoxy-1aβ,2,3,4,4a,7b-hexahydro-3,3,5,7bβ-tetramethyl-1H-cyclopropa[e]azulene-6(5H)-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

73019-81-5

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73019-81-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 73019-81-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,0,1 and 9 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 73019-81:
(7*7)+(6*3)+(5*0)+(4*1)+(3*9)+(2*8)+(1*1)=115
115 % 10 = 5
So 73019-81-5 is a valid CAS Registry Number.

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