84904-91-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 84904-91-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,9,0 and 4 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 84904-91:
(7*8)+(6*4)+(5*9)+(4*0)+(3*4)+(2*9)+(1*1)=156
156 % 10 = 6
So 84904-91-6 is a valid CAS Registry Number.
84904-91-6Relevant articles and documents
SYNTHESIS OF MEDIUM-RING BICYCLIC BRIDGEHEAD DIAMINES FROM MONOCYCLIC DIAMINES VIA α-AMINOAMMONIUM IONS
Alder, Roger W.,Eastment, Paul,Moss, Richard E.,Sessions, Richard B.,Stringfellow, Martin A.
, p. 4181 - 4184 (2007/10/02)
Condensation of 4-chlorobutanal and 5-chloropentanal with six cyclic diamines gave twelve α-aminoammonium salts; cleavage of these with LiAlH4 gave medium-ring bicyclic diamines.
