20300-44-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20300-44-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,3,0 and 0 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 20300-44:
(7*2)+(6*0)+(5*3)+(4*0)+(3*0)+(2*4)+(1*4)=41
41 % 10 = 1
So 20300-44-1 is a valid CAS Registry Number.
InChI:InChI=1/C30H42O10/c1-16-23(33)24(34)25(35)26(39-16)40-18-5-10-28(15-31)20-6-9-27(2)19(17-3-4-22(32)38-14-17)8-12-30(27,37)21(20)7-11-29(28,36)13-18/h3-4,14-16,18-21,23-26,33-37H,5-13H2,1-2H3/t16?,18-,19+,20?,21?,23+,24?,25?,26+,27+,28-,29-,30-/m0/s1