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900503-40-4

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900503-40-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 900503-40-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,0,0,5,0 and 3 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 900503-40:
(8*9)+(7*0)+(6*0)+(5*5)+(4*0)+(3*3)+(2*4)+(1*0)=114
114 % 10 = 4
So 900503-40-4 is a valid CAS Registry Number.
InChI:InChI=1/C20H24ClNO4/c1-20(2,3)26-19(24)22-14-6-7-15(22)10-12(9-14)16-8-5-13(21)11-17(16)18(23)25-4/h5,8-9,11,14-15H,6-7,10H2,1-4H3

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