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1β-tert-butoxy-2,3,3aα,4,5,7,8,8a-octahydro-4α,8aβ-dimethyl-7α-phenylseleno-6(1H)-azulenone is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

81491-63-6

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81491-63-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81491-63-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,4,9 and 1 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 81491-63:
(7*8)+(6*1)+(5*4)+(4*9)+(3*1)+(2*6)+(1*3)=136
136 % 10 = 6
So 81491-63-6 is a valid CAS Registry Number.

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