87223-40-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 87223-40-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,2,2 and 3 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 87223-40:
(7*8)+(6*7)+(5*2)+(4*2)+(3*3)+(2*4)+(1*0)=133
133 % 10 = 3
So 87223-40-3 is a valid CAS Registry Number.
87223-40-3Relevant academic research and scientific papers
Hovius, Klaas,Wagenaar, Anno,Engberts, Jan B. F. N.
, p. 3137 - 3140 (1983)
Several o-carboxy-N,N-dialkylbenzenesulfonamides rearrange intramolecularly to o-chlorosulfonyl-N,N-dialkylbenzamides upon treatment with an excess of thionyl chloride in an apolar solvent.
