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Toluene-4-sulfonic acid (3aR,3bS,6S,6aS,7aR)-5-hydroxy-2-phenyl-hexahydro-furo[2',3':4,5]furo[2,3-d][1,3]dioxol-6-yl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

72521-48-3

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72521-48-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 72521-48-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,5,2 and 1 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 72521-48:
(7*7)+(6*2)+(5*5)+(4*2)+(3*1)+(2*4)+(1*8)=113
113 % 10 = 3
So 72521-48-3 is a valid CAS Registry Number.

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