459146-64-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 459146-64-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,5,9,1,4 and 6 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 459146-64:
(8*4)+(7*5)+(6*9)+(5*1)+(4*4)+(3*6)+(2*6)+(1*4)=176
176 % 10 = 6
So 459146-64-6 is a valid CAS Registry Number.
459146-64-6Relevant articles and documents
A convenient synthesis of 5- and 8-nitroquinazoline-2,4-dione derivatives
Aziane,Soukri,El Hakmaoui,Lazar,Essassi,Guillaumet,Akssira
, p. 271 - 276 (2007/10/03)
3-Nitrophthalic acid 1 was converted selectively to the two regioisomeric monoesters 2 and 3, which were subsequently transformed via Curtius rearrangement to the corresponding 5- and 8-nitroquinazoline-2,4-diones 4 and 5, respectively. The reduction of t
