129663-34-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 129663-34-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,6,6 and 3 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 129663-34:
(8*1)+(7*2)+(6*9)+(5*6)+(4*6)+(3*3)+(2*3)+(1*4)=149
149 % 10 = 9
So 129663-34-9 is a valid CAS Registry Number.
129663-34-9Relevant academic research and scientific papers
Synthesis of Isoxazolopyridazin-4(5H)-ones and 4-Acyl-5-hydroxy-3(2H)-pyridazinones
Chantegrel, Bernard,Deshayes, Christian,Pujol, Bernard,Wei, Zhong Jia
, p. 927 - 934 (2007/10/02)
The title compounds were prepared from ethyl 5-acyl- or 5-(1-hydroxyethenyl)isoxazole-4-carboxylates which in turn were prepared from ethyl 3-methylamino-2-butenoate or 3(2H)-furanones.
