111857-83-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 111857-83-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,1,8,5 and 7 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 111857-83:
(8*1)+(7*1)+(6*1)+(5*8)+(4*5)+(3*7)+(2*8)+(1*3)=121
121 % 10 = 1
So 111857-83-1 is a valid CAS Registry Number.
111857-83-1Relevant articles and documents
SUR LA REACTIVITE DU SQUARATE DE DIMETHYLE VIS-A-VIS DE THIOLS.
Kraus, Jean-Louis
, p. 1765 - 1768 (2007/10/02)
Thiols react with dimethylsquarate according to a 1,2- or 1,4 addition process, leading to new 2-hydroxy-2 S-alkyl-3,4 dimethoxy-3 cyclobutenones.