111969-93-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 111969-93-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,1,9,6 and 9 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 111969-93:
(8*1)+(7*1)+(6*1)+(5*9)+(4*6)+(3*9)+(2*9)+(1*3)=138
138 % 10 = 8
So 111969-93-8 is a valid CAS Registry Number.
111969-93-8Relevant articles and documents
Synthesis of β-Lactams Through the Use of Mixed Carboxylic-Sulphonic Acid Anhydrides
Sharma, S. D.,Mehra, Usha,Kaur, Verinder
, p. 1061 - 1064 (2007/10/02)
Use of mixed carboxylic-sulphonic acid anhydrides for the synthesis of a variety of simple and fused β-lactams (I-IV, VI and VII ) is described