660425-85-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 660425-85-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,0,4,2 and 5 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 660425-85:
(8*6)+(7*6)+(6*0)+(5*4)+(4*2)+(3*5)+(2*8)+(1*5)=154
154 % 10 = 4
So 660425-85-4 is a valid CAS Registry Number.
660425-85-4Relevant academic research and scientific papers
Amine-induced rearrangement of 4-imino-4H-3,1-benzoxazines to 4-quinazolinones via amidine carboxamides
Snider, Barry B.,Zeng, Hongbo
, p. 173 - 182 (2007/10/03)
Iminobenzoxazines (2) react with pyrrolidine in EtOAc at reflux to give amidine carboxamides (11), which cyclize to quinazolinones (3) on heating in 99:1 MeCN/HOAc. However, both amidines (11d) and (13d) are formed if R 1 = Ar and R2
