161235-80-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 161235-80-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,1,2,3 and 5 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 161235-80:
(8*1)+(7*6)+(6*1)+(5*2)+(4*3)+(3*5)+(2*8)+(1*0)=109
109 % 10 = 9
So 161235-80-9 is a valid CAS Registry Number.
161235-80-9Relevant academic research and scientific papers
Synthesis of 3-substituted-7-alkoxy-5H-pyrazolo[4,3-d]-1,2,3-triazin-4-(3H)-ones
Baraldi,Garuti,Roberti
, p. 1437 - 1440 (2007/10/02)
An efficient method for the preparation of 3-substituted-7-alkoxy-5H-pyrazolo[4,3-d]-1,2,3-triazin-4(3H)-ones 7a-n is described. Isopropyl 1,4-dinitropyrazole-5-carboxylate (2) underwent aromatic nucleophilic 'cine' substitution with concomitant ester hyd
