149990-50-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 149990-50-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,9,9,9 and 0 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 149990-50:
(8*1)+(7*4)+(6*9)+(5*9)+(4*9)+(3*0)+(2*5)+(1*0)=181
181 % 10 = 1
So 149990-50-1 is a valid CAS Registry Number.
InChI:InChI=1/C21H22O6/c1-4-5-20-9-21(17(8-16(20)22)25-11-27-21)12(2)18(20)13-6-14(23-3)19-15(7-13)24-10-26-19/h4,6-8,12,18H,1,5,9-11H2,2-3H3/t12-,18-,20+,21-/m1/s1