111455-90-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 111455-90-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,1,4,5 and 5 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 111455-90:
(8*1)+(7*1)+(6*1)+(5*4)+(4*5)+(3*5)+(2*9)+(1*0)=94
94 % 10 = 4
So 111455-90-4 is a valid CAS Registry Number.
111455-90-4Relevant articles and documents
Pyrrolylpolyenes. Part 8. N-Alkylation of Pyrroles by Phosphorus Esters
Mercey, Jacqueline M.,Toube, Trevor P.
, p. 680 - 695 (2007/10/02)
Pyrrole-2-carboxaldehydes and derived propenoates and propenonitriles undergo N-alkylation when treated with phosphorus esters in the presence of sodium hydride.