103999-21-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 103999-21-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,3,9,9 and 9 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 103999-21:
(8*1)+(7*0)+(6*3)+(5*9)+(4*9)+(3*9)+(2*2)+(1*1)=139
139 % 10 = 9
So 103999-21-9 is a valid CAS Registry Number.
103999-21-9Relevant articles and documents
Nitroso group transfer from N-nitrososulfonamides to thiolate ions. Intrinsic reactivity
Adam,García-Río,Leis,Moreira
, p. 8822 - 8829 (2007/10/03)
The nitroso group transfer from N-nitrososulfonamides to thiolate ions was studied. Based on the results, the reaction rate is strongly dependent on the nature of the leaving group (αlg ≈ - 1.30), but virtually independent of the basicity of th