889095-91-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 889095-91-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,8,9,0,9 and 5 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 889095-91:
(8*8)+(7*8)+(6*9)+(5*0)+(4*9)+(3*5)+(2*9)+(1*1)=244
244 % 10 = 4
So 889095-91-4 is a valid CAS Registry Number.
889095-91-4Relevant academic research and scientific papers
β-Tosylethylazide: a useful synthon for preparation of N-protected 1,2,3-triazoles via click chemistry
Yap, Amy H.,Weinreb, Steven M.
, p. 3035 - 3038 (2007/10/03)
β-Tosylethylazide (TSE-N3), which can be prepared in one step from p-tolyl vinyl sulfone and sodium azide/H2SO4, undergoes metal-catalyzed 1,3-dipolar cycloadditions with alkynes to produce TSE-protected 1,2,3-triazoles. T
