117924-17-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 117924-17-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,9,2 and 4 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 117924-17:
(8*1)+(7*1)+(6*7)+(5*9)+(4*2)+(3*4)+(2*1)+(1*7)=131
131 % 10 = 1
So 117924-17-1 is a valid CAS Registry Number.
117924-17-1Relevant articles and documents
A Simple Preparation of Vinyl- or Allyldiphenylphosphine Oxides
Santelli-Rouvier, Christiane
, p. 64 - 66 (2007/10/02)
A general route to 2- or 2,2-substituted vinyldiphenylphosphine oxides or allyldiphenylphosphine oxides from ketones (or benzaldehyde) and the anion of methyldiphenylphosphine oxide is reported.The intially formed 2-hydroxyalkyldiphenylphosphine oxide is
