81143-15-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81143-15-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,1,4 and 3 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 81143-15:
(7*8)+(6*1)+(5*1)+(4*4)+(3*3)+(2*1)+(1*5)=99
99 % 10 = 9
So 81143-15-9 is a valid CAS Registry Number.
81143-15-9Relevant articles and documents
Reactions of N-Acyl Substituted α-Chloroformamidines with Nucleophilic Reagents
Ried, Walter,Erle, Hanns-Eberhard
, p. 201 - 210 (2007/10/02)
The N-acyl substituted chloroformamidines 1a and b are hydrolyzed to the ureas 2a and b.Reaction of 1a with C-, S-, and N-nucleophilic reagents leads to the products 3, 4a, b, 5a-c, 6a-f, 7a-h, and 8a-d.Compound 1a reacts with potassium thiocyanate and po