126707-05-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 126707-05-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,6,7,0 and 7 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 126707-05:
(8*1)+(7*2)+(6*6)+(5*7)+(4*0)+(3*7)+(2*0)+(1*5)=119
119 % 10 = 9
So 126707-05-9 is a valid CAS Registry Number.
126707-05-9Relevant academic research and scientific papers
The Synthesis of 5,8-Difluoronaphthothiophene-4,9-dione and its Facile Conversion to 2--5--8-fluoronaphthopyrrole-4,9-dione
Krapcho, A. Paul,Petry, Mary E.
, p. 1509 - 1510 (2007/10/02)
The synthesis of 5,8-difluoronaphthothiophene-4,9-dione (2a) has been accomplished.Treatment of 2a with 2,2-dimethylaminoethylamine leads to 2--5--8-fluoronaphthopyrrole-4,9-dione (6).
