91257-89-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91257-89-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,2,5 and 7 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 91257-89:
(7*9)+(6*1)+(5*2)+(4*5)+(3*7)+(2*8)+(1*9)=145
145 % 10 = 5
So 91257-89-5 is a valid CAS Registry Number.
91257-89-5Relevant academic research and scientific papers
SYNTHESIS OF 1,2,4,6-THIATRIAZINE 1,1-DIOXIDES. PART III
Michael, Jeffrey D.,Ross, Barry C.,Rees, Peter M.
, p. 4149 - 4152 (2007/10/02)
Novel 1,2,4,6-thiatriazine 1,1-dioxides substituted at either the 2 or 4 ring nitrogen atom have been prepared by cyclizing sulfamido-iso(thio)urea derivatives.
