81072-21-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81072-21-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,0,7 and 2 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 81072-21:
(7*8)+(6*1)+(5*0)+(4*7)+(3*2)+(2*2)+(1*1)=101
101 % 10 = 1
So 81072-21-1 is a valid CAS Registry Number.
InChI:InChI=1/C31H45NO8/c1-29-12-9-21(40-28(37)17-32-25(33)5-3-4-6-26(34)35)16-20(29)7-8-24-23(29)10-13-30(2)22(11-14-31(24,30)38)19-15-27(36)39-18-19/h15,20-24,38H,3-14,16-18H2,1-2H3,(H,32,33)(H,34,35)/t20-,21+,22-,23+,24-,29+,30-,31?/m1/s1