105344-74-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 105344-74-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,5,3,4 and 4 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 105344-74:
(8*1)+(7*0)+(6*5)+(5*3)+(4*4)+(3*4)+(2*7)+(1*4)=99
99 % 10 = 9
So 105344-74-9 is a valid CAS Registry Number.
InChI:InChI=1/C39H44O3/c1-23(32-15-16-33-31-14-12-28-21-29(40)17-19-38(28,2)34(31)18-20-39(32,33)3)37(41)42-22-27-10-9-26-8-7-24-5-4-6-25-11-13-30(27)36(26)35(24)25/h4-13,23,29,31-34,40H,14-22H2,1-3H3/t23-,29-,31-,32+,33-,34-,38-,39+/m0/s1