104992-90-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 104992-90-7 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 0 respectively.
Calculate Digit Verification of CAS Registry Number 104992-90:
(8*1)+(7*0)+(6*4)+(5*9)+(4*9)+(3*2)+(2*9)+(1*0)=137
137 % 10 = 7
So 104992-90-7 is a valid CAS Registry Number.
InChI:InChI=1/C20H28O4/c1-12-6-5-7-13(2)10-17(22)19-15(4)20(23)24-18(19)11-14(3)9-16(21)8-12/h7-8,11,16-19,21-22H,4-6,9-10H2,1-3H3/b12-8+,13-7+,14-11+/t16-,17+,18+,19+/m1/s1