189825-07-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 189825-07-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,9,8,2 and 5 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 189825-07:
(8*1)+(7*8)+(6*9)+(5*8)+(4*2)+(3*5)+(2*0)+(1*7)=188
188 % 10 = 8
So 189825-07-8 is a valid CAS Registry Number.
189825-07-8Relevant articles and documents
Synthesis of [1.1.1]Propellanes by Cyclization of 3-Alkylidenecyclobutylidenes
Kenndoff, Monika,Singer, Andrea,Szeimies, Guenter
, p. 217 - 232 (2007/10/03)
Starting from tricyclo[3.1.0.02,6]hexane 5 and 1-bromobicyclo[1.1.0]butane 6, a series of [1.1.1]propellanes 15 and 21 has been synthesized which carry alkyl, aryl, alkenyl, and alkynyl groups. Propellane formation proceeded via 1-bromo-1-chlor
