157757-66-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 157757-66-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,7,5 and 7 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 157757-66:
(8*1)+(7*5)+(6*7)+(5*7)+(4*5)+(3*7)+(2*6)+(1*6)=179
179 % 10 = 9
So 157757-66-9 is a valid CAS Registry Number.
InChI:InChI=1/C30H42Cl2N2O3/c1-29-13-11-21(37-28(36)23-5-3-4-6-26(23)34(17-15-31)18-16-32)19-20(29)7-8-22-24(29)12-14-30(2)25(22)9-10-27(35)33-30/h3-6,20-22,24-25H,7-19H2,1-2H3,(H,33,35)/t20-,21-,22+,24-,25-,29-,30-/m0/s1