177033-62-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 177033-62-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,7,0,3 and 3 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 177033-62:
(8*1)+(7*7)+(6*7)+(5*0)+(4*3)+(3*3)+(2*6)+(1*2)=134
134 % 10 = 4
So 177033-62-4 is a valid CAS Registry Number.
177033-62-4Relevant articles and documents
Bis-(pyrimidiniumolates)
Laackmann, Peter,Friedrichsen, Willy
, p. 5475 - 5486 (1996)
The preparation of bis-(pyrimidiniumolates) (8a-d, 10) is described. Semiempirical quantum chemical calculations (AM1, PM3) for 2a, 8a, 10, 11 and 12 and an ab initio treatment (6-31G°) of 2a are reported.