137553-03-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137553-03-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,5,5 and 3 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 137553-03:
(8*1)+(7*3)+(6*7)+(5*5)+(4*5)+(3*3)+(2*0)+(1*3)=128
128 % 10 = 8
So 137553-03-8 is a valid CAS Registry Number.
InChI:InChI=1/C48H78O20S/c1-21(2)23-11-16-48(18-17-46(7)24(30(23)48)9-10-28-45(6)14-13-29(68-69(59,60)61)44(4,5)27(45)12-15-47(28,46)8)43(58)67-42-39(66-41-37(57)35(55)32(52)25(19-49)63-41)38(33(53)26(20-50)64-42)65-40-36(56)34(54)31(51)22(3)62-40/h22-42,49-57H,1,9-20H2,2-8H3,(H,59,60,61)/t22-,23-,24+,25+,26+,27-,28+,29-,30+,31-,32+,33+,34+,35-,36+,37+,38-,39+,40-,41+,42+,45-,46+,47+,48-/m0/s1