138898-69-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138898-69-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,8,9 and 8 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 138898-69:
(8*1)+(7*3)+(6*8)+(5*8)+(4*9)+(3*8)+(2*6)+(1*9)=198
198 % 10 = 8
So 138898-69-8 is a valid CAS Registry Number.
InChI:InChI=1/C43H77F3NO9P/c1-3-5-7-9-11-13-15-17-19-21-23-25-27-29-31-33-40(48)53-37-39(38-55-57(51,52)54-36-35-47-42(50)43(44,45)46)56-41(49)34-32-30-28-26-24-22-20-18-16-14-12-10-8-6-4-2/h17-20,39H,3-16,21-38H2,1-2H3,(H,47,50)(H,51,52)/b19-17+,20-18+