81536-58-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81536-58-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,5,3 and 6 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 81536-58:
(7*8)+(6*1)+(5*5)+(4*3)+(3*6)+(2*5)+(1*8)=135
135 % 10 = 5
So 81536-58-5 is a valid CAS Registry Number.
InChI:InChI=1/C22H20O10/c23-15(31-22-19(27)17(25)18(26)20(32-22)21(28)29)8-10-5-6-14-13(7-10)16(24)12-4-2-1-3-11(12)9-30-14/h1-7,17-20,22,25-27H,8-9H2,(H,28,29)/t17-,18-,19+,20-,22+/m0/s1