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(E)-tert-butyl-4-chloro-2-butenoate is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

56905-09-0

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56905-09-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 56905-09-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,6,9,0 and 5 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 56905-09:
(7*5)+(6*6)+(5*9)+(4*0)+(3*5)+(2*0)+(1*9)=140
140 % 10 = 0
So 56905-09-0 is a valid CAS Registry Number.

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