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(1R)-trans-p-menthan-2-one semicarbazone is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

640296-44-2

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640296-44-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 640296-44-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,4,0,2,9 and 6 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 640296-44:
(8*6)+(7*4)+(6*0)+(5*2)+(4*9)+(3*6)+(2*4)+(1*4)=152
152 % 10 = 2
So 640296-44-2 is a valid CAS Registry Number.

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