102117-57-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 102117-57-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,2,1,1 and 7 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 102117-57:
(8*1)+(7*0)+(6*2)+(5*1)+(4*1)+(3*7)+(2*5)+(1*7)=67
67 % 10 = 7
So 102117-57-7 is a valid CAS Registry Number.
102117-57-7Relevant articles and documents
Phosphorylated 2-Chloroethynes in the Reactions with Malonic Acid Derivatives: Azirine or Oxazole?
Dogadina, A. V.,Gurzhiy, V. V.,Viktorov, N. B.
, p. 1325 - 1332 (2021/08/13)
Abstract: The reactions of (2-chloroethynyl)diphenylphosphine oxide with diethyl 2-aminomalonate and of dimethyl (2-chloroethynyl)phosphonate with 2-amino-N1,N3-di(p-tolyl)malonamide or 2-aminomalonamide proceed chemo- and regioselec
