136657-37-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 136657-37-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,6,6,5 and 7 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 136657-37:
(8*1)+(7*3)+(6*6)+(5*6)+(4*5)+(3*7)+(2*3)+(1*7)=149
149 % 10 = 9
So 136657-37-9 is a valid CAS Registry Number.
InChI:InChI=1/C30H34N2O11/c1-39-19-8-4-5-9-20(19)40-13-12-31-14-16(33)15-41-21-10-11-22(24-23(21)17-6-2-3-7-18(17)32-24)42-30-27(36)25(34)26(35)28(43-30)29(37)38/h2-11,16,25-28,30-36H,12-15H2,1H3,(H,37,38)/t16-,25+,26+,27-,28+,30-/m1/s1