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1,3,4,5-Tetramethyl-cyclohexen-(3)-ol-(1)-on-(2) is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

91056-66-5

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91056-66-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91056-66-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,0,5 and 6 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 91056-66:
(7*9)+(6*1)+(5*0)+(4*5)+(3*6)+(2*6)+(1*6)=125
125 % 10 = 5
So 91056-66-5 is a valid CAS Registry Number.

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