258340-49-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 258340-49-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,8,3,4 and 0 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 258340-49:
(8*2)+(7*5)+(6*8)+(5*3)+(4*4)+(3*0)+(2*4)+(1*9)=147
147 % 10 = 7
So 258340-49-7 is a valid CAS Registry Number.
258340-49-7Relevant articles and documents
Synthesis of 4,5-dichloro-1-(4,5-dichloropyridazin-3-yl)pyridazin-6-one
Kweon, Deok-Heon,Kang, Young-Jin,Chung, Hyun-A.,Park, Jung-Won,Lee, Woo Song,Yoon, Yong-Jin,Kim, Sung-Kyu,Shiro, Motoo
, p. 1301 - 1306 (1999)
This paper presents the synthesis of 4,5-dichloro-1-(4,5- dichloropyridazin-3-yl)pyridazin-6-one from 4,5-dichloropyridazin-6-one.