78031-99-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 78031-99-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,0,3 and 1 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 78031-99:
(7*7)+(6*8)+(5*0)+(4*3)+(3*1)+(2*9)+(1*9)=139
139 % 10 = 9
So 78031-99-9 is a valid CAS Registry Number.
78031-99-9Relevant academic research and scientific papers
PHTHALAZINE DERIVATIVES FROM AROMATIC ALDAZINES
Robev, Stefan K.
, p. 345 - 348 (2007/10/02)
A Lewis acid mediated synthesis of phthalazine derivatives II and III from aromatic aldazines I is reported.
