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((3aR,5S,6R)-5-Formyl-2,2-dimethyl-tetrahydro-furo[2,3-d][1,3]dioxol-6-ylmethyl)-phosphonic acid diethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

31843-73-9

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31843-73-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 31843-73-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,8,4 and 3 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 31843-73:
(7*3)+(6*1)+(5*8)+(4*4)+(3*3)+(2*7)+(1*3)=109
109 % 10 = 9
So 31843-73-9 is a valid CAS Registry Number.

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