98983-21-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 98983-21-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,9,8 and 3 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 98983-21:
(7*9)+(6*8)+(5*9)+(4*8)+(3*3)+(2*2)+(1*1)=202
202 % 10 = 2
So 98983-21-2 is a valid CAS Registry Number.
InChI:InChI=1/C39H43NO12/c1-4-5-14-28(42)50-19-27(41)39(48)16-23-31(38(47)33-32(36(23)45)35(44)22-12-9-13-25(49-3)30(22)37(33)46)26(17-39)52-29-15-24(34(43)20(2)51-29)40-18-21-10-7-6-8-11-21/h6-13,20,24,26,29,34,40,43,45,47-48H,4-5,14-19H2,1-3H3/t20-,24-,26-,29-,34+,39-/m0/s1