139701-81-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 139701-81-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,7,0 and 1 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 139701-81:
(8*1)+(7*3)+(6*9)+(5*7)+(4*0)+(3*1)+(2*8)+(1*1)=138
138 % 10 = 8
So 139701-81-8 is a valid CAS Registry Number.
InChI:InChI=1/C39H71N5O13P2/c1-3-5-7-9-11-13-15-17-19-21-23-25-34(45)53-29-33(56-35(46)26-24-22-20-18-16-14-12-10-8-6-4-2)30-55-59(50,51)57-58(48,49)54-28-27-52-32-44-31-41-36-37(44)42-39(40)43-38(36)47/h31,33H,3-30,32H2,1-2H3,(H,48,49)(H,50,51)(H3,40,42,43,47)/t33-/m1/s1