111232-50-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 111232-50-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,1,2,3 and 2 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 111232-50:
(8*1)+(7*1)+(6*1)+(5*2)+(4*3)+(3*2)+(2*5)+(1*0)=59
59 % 10 = 9
So 111232-50-9 is a valid CAS Registry Number.
111232-50-9Relevant academic research and scientific papers
REACTION OF SPIRO-4'-ONES WITH ACETIC ANHYDRIDE
Yamato, Masatoshi,Takeuchi, Yasuo,Ikeda, Yuji
, p. 191 - 197 (2007/10/02)
The tetrahydro derivative (5a) and its aza derivative (5b) of antitumor active amsacrine were prepared.The key synthetic intermediate (3a) was simply prepared by rearrangement of spiro-compound (2a) by heating with acetic anhydride and pyridine.On the oth
