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(2E,6E)-(4S,5R)-5-(tert-Butyl-dimethyl-silanyloxy)-2,4,6-trimethyl-octa-2,6-dienoic acid ethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

442159-40-2

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442159-40-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 442159-40-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,2,1,5 and 9 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 442159-40:
(8*4)+(7*4)+(6*2)+(5*1)+(4*5)+(3*9)+(2*4)+(1*0)=132
132 % 10 = 2
So 442159-40-2 is a valid CAS Registry Number.

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