204519-54-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 204519-54-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,4,5,1 and 9 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 204519-54:
(8*2)+(7*0)+(6*4)+(5*5)+(4*1)+(3*9)+(2*5)+(1*4)=110
110 % 10 = 0
So 204519-54-0 is a valid CAS Registry Number.
204519-54-0Relevant articles and documents
Synthesis of Fluorinated 7-Diethylaminophenoxazin-3-ones and 9-Diethylamino-5H-benzo[a]phenoxazine-5-ones
Gerasimova,Kolchina,Kargapolova,Fokin
, p. 735 - 739 (2007/10/03)
A procedure is proposed for synthesis of fluorinated 7-diethylaminophenoxazin-3-ones and 9-diethylamino-5H-benzo[a]phenoxazin-5-ones.