12777-77-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 12777-77-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,2,7,7 and 7 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 12777-77:
(7*1)+(6*2)+(5*7)+(4*7)+(3*7)+(2*7)+(1*7)=124
124 % 10 = 4
So 12777-77-4 is a valid CAS Registry Number.
InChI:InChI=1/C34H30N2O10S3.2Na/c1-36(22-24-5-3-2-4-6-24)28-15-11-26(12-16-28)34(30-19-31(37)33(49(44,45)46)20-32(30)48(41,42)43)25-9-13-27(14-10-25)35-21-23-7-17-29(18-8-23)47(38,39)40;;/h2-20H,21-22H2,1H3,(H4,37,38,39,40,41,42,43,44,45,46);;/q;2*+1/p-2