244129-69-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 244129-69-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,4,4,1,2 and 9 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 244129-69:
(8*2)+(7*4)+(6*4)+(5*1)+(4*2)+(3*9)+(2*6)+(1*9)=129
129 % 10 = 9
So 244129-69-9 is a valid CAS Registry Number.
244129-69-9Relevant articles and documents
A 2,2′-Biphosphinine Dianion: Synthesis and Reactivity
Rosa, Patrick,Ricard, Louis,Mathey, Fran?ois,Le Floch, Pascal
, p. 3348 - 3352 (1999)
The reduction of 4,4′,5,5′-tetramethyl-2,2′-biphosphinine (tmbp) with excess Li, Na, or K affords the corresponding dianions. Reaction of these anions with metal halides gives (tmbp)-metal(0) complexes.
