115591-89-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 115591-89-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,5,5,9 and 1 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 115591-89:
(8*1)+(7*1)+(6*5)+(5*5)+(4*9)+(3*1)+(2*8)+(1*9)=134
134 % 10 = 4
So 115591-89-4 is a valid CAS Registry Number.
115591-89-4Relevant articles and documents
1,2,3-Trimethylenecyclopentanes: Synthesis and Reactions
Kaupp, Gerd,Frey, Herbert,Behmann, Gabriele
, p. 2127 - 2134 (2007/10/02)
The first 1,2,3-trimethylenecyclopentanes 3 are synthesized from bismethylenecyclopentanones 1 by a Wittig reaction in the presence of sodium bis(trimethylsilyl)amide.Several side and succeeding reactions occur.These yield cyclopropane derivatives 4, prod
