139643-79-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 139643-79-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,6,4 and 3 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 139643-79:
(8*1)+(7*3)+(6*9)+(5*6)+(4*4)+(3*3)+(2*7)+(1*9)=161
161 % 10 = 1
So 139643-79-1 is a valid CAS Registry Number.
InChI:InChI=1/C31H38O8S/c1-17-10-8-9-13-21(32)12-7-5-4-6-11-20-14-18(2)19(3)15-31(20)28(35)24(30(38)39-31)25(33)22-16-40-27(23(17)22)26(34)29(36)37/h4-9,14,17,19-23,27,32,38H,10-13,15-16H2,1-3H3,(H,36,37)/b6-4+,7-5-,9-8+