74321-28-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 74321-28-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,3,2 and 1 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 74321-28:
(7*7)+(6*4)+(5*3)+(4*2)+(3*1)+(2*2)+(1*8)=111
111 % 10 = 1
So 74321-28-1 is a valid CAS Registry Number.
74321-28-1Relevant articles and documents
Introduction of the (Dimethylhydrazono)ethyl Group into Methylene Active Compounds and Phenols
Severin, Theodor,Lerche, Holger,Mayring, Lothar
, p. 970 - 978 (2007/10/02)
In trimethylammonium iodide the trimethylammonium group can be substituted by several nucleophiles.With this reagent (dimethylhydrazono)ethyl derivatives of CH-acidic compounds, phenols, and indole can be prepared.