240433-20-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 240433-20-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,4,0,4,3 and 3 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 240433-20:
(8*2)+(7*4)+(6*0)+(5*4)+(4*3)+(3*3)+(2*2)+(1*0)=89
89 % 10 = 9
So 240433-20-9 is a valid CAS Registry Number.
240433-20-9Relevant articles and documents
Addition of 2-lithiothiazoles to ROPHy/SOPHy aldoximes: Asymmetric synthesis of 1-(2-thiazolyl)ethylamines
Moody, Christopher J.,Hunt, James C. A.
, p. 984 - 986 (2007/10/03)
A new asymmetric synthesis of 1-(2-thiazolyl)ethylamines is described in which the key step is the diastereoselective addition of 2-lithiothiazoles to O-(1-phenylbutyl) aidoximes.
