81668-44-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81668-44-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,6,6 and 8 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 81668-44:
(7*8)+(6*1)+(5*6)+(4*6)+(3*8)+(2*4)+(1*4)=152
152 % 10 = 2
So 81668-44-2 is a valid CAS Registry Number.
81668-44-2Relevant articles and documents
Metallation Studies with Pyrimidines
Katrizky, Alan R.,Salgado, Hector J.,Chermprapai, Amornsri,Ponkshe, Narayan K.
, p. 153 - 158 (2007/10/02)
2-Alkylamino-4,6-diphenylpyrimidines are acylated only at nitrogen after treatment with lithium di-isopropylamide (LDA). 4,6-Diaryl-1-benzylpyrimidin-2(1H)-ones can be acylated and alkylated at the α-CH3 group. 1-Methyl-4,6-di-p-tolylpyrimidin-2(1H)-one f
