218281-28-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 218281-28-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,8,2,8 and 1 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 218281-28:
(8*2)+(7*1)+(6*8)+(5*2)+(4*8)+(3*1)+(2*2)+(1*8)=128
128 % 10 = 8
So 218281-28-8 is a valid CAS Registry Number.
218281-28-8Relevant articles and documents
Electrophilic reactivities of azodicarboxylates
Kanzian, Tanja,Mayr, Herbert
, p. 11670 - 11677 (2010)
The kinetics of the reactions of the azodicarboxylates 1 with the enamines 2 have been studied in CH3CN at 20 °C. The reactions follow a secondorder rate law and can be described by the linear free energy relationship logk2(20 °C) =