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1,1-Dioxo-4-[1-p-tolyl-meth-(E)-ylidene]-1,2,3,4-tetrahydro-1λ6-benzo[b]thiepin-5-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

81326-72-9

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81326-72-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81326-72-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,3,2 and 6 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 81326-72:
(7*8)+(6*1)+(5*3)+(4*2)+(3*6)+(2*7)+(1*2)=119
119 % 10 = 9
So 81326-72-9 is a valid CAS Registry Number.

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