144582-89-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 144582-89-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,4,5,8 and 2 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 144582-89:
(8*1)+(7*4)+(6*4)+(5*5)+(4*8)+(3*2)+(2*8)+(1*9)=148
148 % 10 = 8
So 144582-89-8 is a valid CAS Registry Number.
144582-89-8Relevant articles and documents
Synthesis of carbocyclic annulated pyridazines by intramolecular Diels-Alder reaction with inverse electron demand
Yang,Seitz
, p. 559 - 561 (2007/10/02)
By way of the title reaction, tetrazines 5 with different ω-alkyne side-chain dienophiles react to form the novel carbocyclically annulated pyridazines 7-10 in good yields.
