103956-42-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 103956-42-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,3,9,5 and 6 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 103956-42:
(8*1)+(7*0)+(6*3)+(5*9)+(4*5)+(3*6)+(2*4)+(1*2)=119
119 % 10 = 9
So 103956-42-9 is a valid CAS Registry Number.
InChI:InChI=1/C35H49NO8/c1-7-36-18-33(19-39-2)13-12-28(43-6)35-22-15-21-26(42-5)17-34(38,23(32(35)36)16-27(33)35)30(22)31(21)44-29(37)11-9-20-8-10-24(40-3)25(14-20)41-4/h8-11,14,21-23,26-28,30-32,38H,7,12-13,15-19H2,1-6H3/b11-9+