205877-92-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 205877-92-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,5,8,7 and 7 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 205877-92:
(8*2)+(7*0)+(6*5)+(5*8)+(4*7)+(3*7)+(2*9)+(1*2)=155
155 % 10 = 5
So 205877-92-5 is a valid CAS Registry Number.
205877-92-5Relevant articles and documents
α-iodocycloalkenones: Synthesis of (±)-epibatidine
Sirisoma, Nilantha S.,Johnson, Carl R.
, p. 2059 - 2062 (2007/10/03)
A synthesis of the non-opiate analgesic alkaloid epibatidine was achieved in 13 steps and 13% Overall yield starting from 1,3-cyclohexadiene using in a key step a modified Stille coupling reaction on an α- iodocyclohexenone.