128609-01-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128609-01-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,6,0 and 9 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 128609-01:
(8*1)+(7*2)+(6*8)+(5*6)+(4*0)+(3*9)+(2*0)+(1*1)=128
128 % 10 = 8
So 128609-01-8 is a valid CAS Registry Number.
128609-01-8Relevant academic research and scientific papers
SINGLE STEP SYNTHESIS OF SULFONATED 4H-1,4-BENZOTHIAZINES
Gupta, Vandana,Gautam, R. K.,Jain, S. K.,Gupta, R. R.
, p. 225 - 228 (2007/10/02)
Single step and convenient synthesis for 6-sulfonated 4H-1,4-benzothiazines is reported by the condensation and oxidative cyclization of 2-aminobenzenethiol-4-sulphonic acid with β-diketones/β-ketoesters. 2-Aminobenzenethiol-4-sulphonic acid has been synt
