193686-70-3 Usage
Synthesis Reference(s)
Tetrahedron Letters, 43, p. 4115, 2002 DOI: 10.1016/S0040-4039(02)00696-2
Check Digit Verification of cas no
The CAS Registry Mumber 193686-70-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,3,6,8 and 6 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 193686-70:
(8*1)+(7*9)+(6*3)+(5*6)+(4*8)+(3*6)+(2*7)+(1*0)=183
183 % 10 = 3
So 193686-70-3 is a valid CAS Registry Number.