77120-07-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77120-07-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,1,2 and 0 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 77120-07:
(7*7)+(6*7)+(5*1)+(4*2)+(3*0)+(2*0)+(1*7)=111
111 % 10 = 1
So 77120-07-1 is a valid CAS Registry Number.
77120-07-1Relevant articles and documents
TAUTOMERISM OF AZOPIGMENTS DERIVIED FROM BILIRUBIN
Compernolle, F.,Toppet, S.,Hutchinson, D.W.
, p. 2237 - 2240 (1980)
(1)H and (13)C n.m.r. data indicate that bilirubin azopigments exist predominantly as phenylhydrazone rather than azobenzene tautomers.Whereas O-lactim ethers derived from the azopigments exist predominantly as the azobenzene tautomers.