20139-55-3 Usage
Safety Profile
Moderately toxic by ingestion.When heated to decomposition it emits toxic vapors ofNOx.
Check Digit Verification of cas no
The CAS Registry Mumber 20139-55-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,1,3 and 9 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 20139-55:
(7*2)+(6*0)+(5*1)+(4*3)+(3*9)+(2*5)+(1*5)=73
73 % 10 = 3
So 20139-55-3 is a valid CAS Registry Number.
20139-55-3Relevant articles and documents
Microwave induced acetoacetylation of hetaryl and aryl amines
Suri,Satti,Suri
, p. 3709 - 3718 (2007/10/03)
Acetoacetylation of hetaryl and aryl amines by interaction with ethyl acetoacetate under microwave irradiation, without any catalyst and/or solvent, is reported.