90273-33-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 90273-33-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,2,7 and 3 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 90273-33:
(7*9)+(6*0)+(5*2)+(4*7)+(3*3)+(2*3)+(1*3)=119
119 % 10 = 9
So 90273-33-9 is a valid CAS Registry Number.
90273-33-9Relevant articles and documents
Synthesis of α-acetoxy and formyloxy ketones by thallium(III) promoted α-oxidation
Lee,Jin,Choi
, p. 956 - 957 (2007/10/03)
Treatment of ketones with thallium(III) triflate in amide solvents at 60°C for 30 min followed by addition of small amounts of H2O cleanly provided the corresponding α-acyloxy ketones.