900503-44-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 900503-44-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,0,0,5,0 and 3 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 900503-44:
(8*9)+(7*0)+(6*0)+(5*5)+(4*0)+(3*3)+(2*4)+(1*4)=118
118 % 10 = 8
So 900503-44-8 is a valid CAS Registry Number.
InChI:InChI=1/C21H27NO4/c1-21(2,3)26-20(24)22-17-8-9-18(22)13-15(12-17)10-14-6-5-7-16(11-14)19(23)25-4/h5-7,11-12,17-18H,8-10,13H2,1-4H3