118804-20-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 118804-20-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,8,8,0 and 4 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 118804-20:
(8*1)+(7*1)+(6*8)+(5*8)+(4*0)+(3*4)+(2*2)+(1*0)=119
119 % 10 = 9
So 118804-20-9 is a valid CAS Registry Number.
118804-20-9Relevant academic research and scientific papers
-PROTOTROPIE AN OXALSAEUREPHOSPHIDEN
Appel, Rolf,Huenerbein, Johannes
, p. 607 - 608 (2007/10/02)
The oxalic acid diphosphide 1 and the monophosphide 5 can be completely transformed by prototropic rearrangement into the diphospha- and monophosphabutenes 2 resp. 6.The compounds 1, 2 and 6 were isolated and definitely characterized by spectroscopic stud
