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178820-70-7

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178820-70-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 178820-70-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,8,8,2 and 0 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 178820-70:
(8*1)+(7*7)+(6*8)+(5*8)+(4*2)+(3*0)+(2*7)+(1*0)=167
167 % 10 = 7
So 178820-70-7 is a valid CAS Registry Number.
InChI:InChI=1/C30H37N3O4/c1-30(2,3)37-29(36)31-26(20-23-14-8-5-9-15-23)27(34)22-33(4,21-24-16-10-6-11-17-24)32-28(35)25-18-12-7-13-19-25/h5-19,26-27H,20-22H2,1-4H3,(H,31,36)(H,32,35)/t26?,27-,33-/m0/s1

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