20071-50-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20071-50-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,0,7 and 1 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 20071-50:
(7*2)+(6*0)+(5*0)+(4*7)+(3*1)+(2*5)+(1*0)=55
55 % 10 = 5
So 20071-50-5 is a valid CAS Registry Number.
InChI:InChI=1/C20H25ClO7/c1-5-9(2)17(23)27-13-7-19(25,8-21)15-12(22)6-10(3)20(15,26)16-14(13)11(4)18(24)28-16/h5-6,12-16,22,25-26H,4,7-8H2,1-3H3/b9-5-/t12-,13-,14-,15+,16+,19+,20-/m1/s1