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131948-41-9

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131948-41-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 131948-41-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,9,4 and 8 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 131948-41:
(8*1)+(7*3)+(6*1)+(5*9)+(4*4)+(3*8)+(2*4)+(1*1)=129
129 % 10 = 9
So 131948-41-9 is a valid CAS Registry Number.
InChI:InChI=1/C31H36N4O5/c1-35(20-21-8-3-2-4-9-21)26(29(38)34-28(37)25-12-7-17-32-25)18-30(13-15-31(39,40)16-14-30)27(36)23-19-33-24-11-6-5-10-22(23)24/h2-6,8-11,13,15,19,25-26,32-33,39-40H,7,12,14,16-18,20H2,1H3,(H,34,37,38)/t25-,26-,30?/m0/s1

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