40781-51-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 40781-51-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,7,8 and 1 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 40781-51:
(7*4)+(6*0)+(5*7)+(4*8)+(3*1)+(2*5)+(1*1)=109
109 % 10 = 9
So 40781-51-9 is a valid CAS Registry Number.
40781-51-9Relevant academic research and scientific papers
LEWIS ACID MEDIATED AMINOLYSIS OF ESTERS: CONVERSION OF METHYL (S)-(-)-2-CHLOROPROPIONATE TO (S)-(+)-N,N-DIETHYL-2-CHLOROPROPIONAMIDE
Gless, R. D.
, p. 633 - 638 (2007/10/02)
Methyl (S)-(-)-2-chloropropionate 1 is converted to (S)-(+)-N,N-diethyl-2-chloropropionamide 2 in high chemical and optical yield using a Lewis acid/diethylamine reagent.
