20071-52-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20071-52-7 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 2 respectively.
Calculate Digit Verification of CAS Registry Number 20071-52:
(7*2)+(6*0)+(5*0)+(4*7)+(3*1)+(2*5)+(1*2)=57
57 % 10 = 7
So 20071-52-7 is a valid CAS Registry Number.
InChI:InChI=1/C20H25ClO8/c1-5-8(2)16(23)27-10-6-19(25,7-21)13-12(22)15-18(4,29-15)20(13,26)14-11(10)9(3)17(24)28-14/h5,10-15,22,25-26H,3,6-7H2,1-2,4H3/b8-5-/t10-,11-,12+,13+,14+,15-,18-,19+,20-/m1/s1