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tert-butyl [(3R,4R,5S)-4-{[tert-butyl(dimethyl)silyl]oxy}-5-methyl-1-(3-nitro-5-methyl-pyridin-4-yl)piperidin-3-yl]carbamate is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

1620239-83-9

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1620239-83-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1620239-83-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,2,0,2,3 and 9 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1620239-83:
(9*1)+(8*6)+(7*2)+(6*0)+(5*2)+(4*3)+(3*9)+(2*8)+(1*3)=139
139 % 10 = 9
So 1620239-83-9 is a valid CAS Registry Number.

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