153309-68-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 153309-68-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,3,3,0 and 9 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 153309-68:
(8*1)+(7*5)+(6*3)+(5*3)+(4*0)+(3*9)+(2*6)+(1*8)=123
123 % 10 = 3
So 153309-68-3 is a valid CAS Registry Number.
153309-68-3Relevant articles and documents
Tricyclic benzomorphan analogues by intramolecular Oxa-Pictet-Spengler reaction
Wunsch,Zott
, p. 2307 - 2310 (1993)
The key step in the regio- and stereoselective preparation of the benzomorphan analogues 9, 10a, 10b, 14 and 15 is an intramolecular Oxa-Pictet-Spengler reaction. Masked as an acetal the carbonyl component is connected via an amide to the 2-phenylethanol component (7, 12).
