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(1R,8R,13R)-3-oxo-8-(hydroxymethyl)-9-aza-2-oxatricyclo<8.3.01,5.09,13>trideca-4,6-diene is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

128562-74-3

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128562-74-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128562-74-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,5,6 and 2 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 128562-74:
(8*1)+(7*2)+(6*8)+(5*5)+(4*6)+(3*2)+(2*7)+(1*4)=143
143 % 10 = 3
So 128562-74-3 is a valid CAS Registry Number.

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