80204-20-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 80204-20-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,0,2,0 and 4 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 80204-20:
(7*8)+(6*0)+(5*2)+(4*0)+(3*4)+(2*2)+(1*0)=82
82 % 10 = 2
So 80204-20-2 is a valid CAS Registry Number.
80204-20-2Relevant articles and documents
AN IMPROVED, PREPARATIVE ROUTE TO 1-CYCLOPROPYL-1-HALOETHANES
Hrubiec, Robert T.,Smith, Michael B.
, p. 593 - 600 (2007/10/02)
We wish to report a method for the synthesis of 1-cyclopropyl-1-chloroethane and 1-cyclopropyl-1-bromoethane, on a preparative scale, uncontaminated by 5-chloro(or bromo)-2-pentene.