140706-34-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 140706-34-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,0,7,0 and 6 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 140706-34:
(8*1)+(7*4)+(6*0)+(5*7)+(4*0)+(3*6)+(2*3)+(1*4)=99
99 % 10 = 9
So 140706-34-9 is a valid CAS Registry Number.
140706-34-9Relevant academic research and scientific papers
PREPARATION AND CHARACTERIZATION OF PYRAZOLOPYRIMIDINES
Maquestiau, A.,Taghret, H.,Eynde, J.-J. vanden
, p. 131 - 136 (2007/10/02)
1-Phenyl-1,3-butadione readily reacts with 3(5)-amino-1H-pyrazoles to yield mixtures of pyrazolopyrimidines which are identified by 1H nmr.Selective preparation of 5-methyl-7-phenylpyrazolopyrimidines can be achieved when 3-amino-1-phenyl-2-
