149452-20-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 149452-20-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,9,4,5 and 2 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 149452-20:
(8*1)+(7*4)+(6*9)+(5*4)+(4*5)+(3*2)+(2*2)+(1*0)=140
140 % 10 = 0
So 149452-20-0 is a valid CAS Registry Number.
149452-20-0Relevant academic research and scientific papers
Facile syntheses of bi-1,2,4-triazoles via hydrazonyl halides
Shawali,Farag,Albar,Dawood
, p. 2761 - 2766 (2007/10/02)
Reaction of oxalodihydrazonyl dihalides 1 with sodium azide afforded the corresponding di-azides 2. Reduction of the latter with LiAlH4 yielded the diamidrazones 4 which react with acyl halides to give the bi-1,2,4-triazoles 5. The latter produ
