108809-72-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 108809-72-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,8,8,0 and 9 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 108809-72:
(8*1)+(7*0)+(6*8)+(5*8)+(4*0)+(3*9)+(2*7)+(1*2)=139
139 % 10 = 9
So 108809-72-9 is a valid CAS Registry Number.
108809-72-9Relevant academic research and scientific papers
Mercier, Francois,Deschamps, Bernard,Mathey, Francois
, p. 9098 - 9100 (1989)
The thermal decomposition of pentacarbonyltungsten at ca. 130 deg C provides an access to transient pentacarbonyltungsten Et2N-P=W(CO5).This transient phosphinidene complex is trapped
