28455-50-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 28455-50-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,4,5 and 5 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 28455-50:
(7*2)+(6*8)+(5*4)+(4*5)+(3*5)+(2*5)+(1*0)=127
127 % 10 = 7
So 28455-50-7 is a valid CAS Registry Number.
28455-50-7Relevant articles and documents
Grignard and cerium reagents of pyrimidine derivatives
Shimura, Akihiko,Momotake, Atsuya,Togo, Hideo,Yokoyama, Masataka
, p. 495 - 499 (1999)
5-(Pyrimidinyl)magnesium and cerium chlorides were prepared via the halogen-metal exchange of 5-bromopyrimidine with ethylmagnesium chloride and a sequential treatment of butyl-lithium and cerium(III) chloride, respectively. In a similar way, 5-[2,4-di(te