82339-49-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 82339-49-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,2,3,3 and 9 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 82339-49:
(7*8)+(6*2)+(5*3)+(4*3)+(3*9)+(2*4)+(1*9)=139
139 % 10 = 9
So 82339-49-9 is a valid CAS Registry Number.
82339-49-9Relevant academic research and scientific papers
A4- to 7-Membered Chelate Ring Expansion in a Ph2PCH2PPh2 (dppm) Derivative: X-Ray Crystal Structure of 4cyclo2PNHN=C(Ph)CH2P>PPh2>>
Al-Jibori, Subhi,McDonald, Walter S.,Shaw, Bernard L.
, p. 287 - 288 (2007/10/02)
Treatment of > with hydrazine hydrate promotes a 4- to 7-membered ring expansion to give the title compound, the X-ray crystal structure of which has been determined.
