104992-91-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 104992-91-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,4,9,9 and 2 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 104992-91:
(8*1)+(7*0)+(6*4)+(5*9)+(4*9)+(3*2)+(2*9)+(1*1)=138
138 % 10 = 8
So 104992-91-8 is a valid CAS Registry Number.
InChI:InChI=1/C22H30O5/c1-13-7-6-8-14(2)11-19(24)21-16(4)22(25)27-20(21)12-15(3)10-18(9-13)26-17(5)23/h8-9,12,18-21,24H,4,6-7,10-11H2,1-3,5H3/b13-9+,14-8+,15-12+/t18-,19+,20+,21+/m1/s1