134272-24-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 134272-24-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,2,7 and 2 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 134272-24:
(8*1)+(7*3)+(6*4)+(5*2)+(4*7)+(3*2)+(2*2)+(1*4)=105
105 % 10 = 5
So 134272-24-5 is a valid CAS Registry Number.
134272-24-5Relevant academic research and scientific papers
A FACILE SYNTHESIS OF SUBSTITUTED 4-HYDROXY-2-PYRIDONES
Chung, Kun Hoe,Cho, Kwang Yun,Asami, Yasuko,Takahashi, Nobutaka,Yoshida, Shigeo
, p. 99 - 105 (2007/10/02)
Substituted 4-hydroxy-2-pyridones (1a-1d) were easily synthesized from ethyl acetoacetate in good yields via C-alkylation, enamine formation, N-acylation, intramolecular cyclization, and debenzylation.
