146820-59-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 146820-59-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,6,8,2 and 0 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 146820-59:
(8*1)+(7*4)+(6*6)+(5*8)+(4*2)+(3*0)+(2*5)+(1*9)=139
139 % 10 = 9
So 146820-59-9 is a valid CAS Registry Number.
146820-59-9Relevant academic research and scientific papers
Regioselective tosylation of aldonolactones
Lundt,Madsen
, p. 1129 - 1132 (2007/10/02)
An investigation of the selective di-O-acylation with p-toluenesulfonyl (tosyl) chloride of the four D-pentono-, the eight D-hexono- and D-glycero-D-gulo-heptonolactone has been undertaken, and a number of 2,5-, 2,6- and 2,7-di-O-tosylated lactones have b
