77121-90-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77121-90-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,1,2 and 1 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 77121-90:
(7*7)+(6*7)+(5*1)+(4*2)+(3*1)+(2*9)+(1*0)=125
125 % 10 = 5
So 77121-90-5 is a valid CAS Registry Number.
InChI:InChI=1/C28H31NO11/c1-11-27(38-3)14(29)7-18(39-11)40-16-9-28(36,17(31)10-30)8-13-20(16)26(35)22-21(24(13)33)23(32)12-5-4-6-15(37-2)19(12)25(22)34/h4-6,11,14,16,18,27,30,33,35-36H,7-10,29H2,1-3H3/t11-,14-,16-,18-,27+,28-/m0/s1