61956-81-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 61956-81-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,1,9,5 and 6 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 61956-81:
(7*6)+(6*1)+(5*9)+(4*5)+(3*6)+(2*8)+(1*1)=148
148 % 10 = 8
So 61956-81-8 is a valid CAS Registry Number.
InChI:InChI=1/C23H36O4/c1-5-6-17-23(2,3)21(25)16-14-18-13-15-20(24)19(18)11-9-7-8-10-12-22(26)27-4/h7,9,13-16,18-19,21,25H,5-6,8,10-12,17H2,1-4H3/b9-7-,16-14+/t18-,19-,21-/m1/s1