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5-Thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid, 3-[(acetyloxy)methyl]-8-oxo-7-[[(phenylmethoxy)carbonyl]amino]-, (6R,7R)- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

16857-40-2

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16857-40-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 16857-40-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,8,5 and 7 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 16857-40:
(7*1)+(6*6)+(5*8)+(4*5)+(3*7)+(2*4)+(1*0)=132
132 % 10 = 2
So 16857-40-2 is a valid CAS Registry Number.

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