557088-93-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 557088-93-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,5,7,0,8 and 8 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 557088-93:
(8*5)+(7*5)+(6*7)+(5*0)+(4*8)+(3*8)+(2*9)+(1*3)=194
194 % 10 = 4
So 557088-93-4 is a valid CAS Registry Number.
557088-93-4Relevant articles and documents
Effective nonenzymatic kinetic resolution of (±)-trans-2-arylcyclohexanols using 3β-acetoxyetienic acid, DCC, and DMAP
Matsugi, Masato,Hagimoto, Yuri,Nojima, Masatomo,Kita, Yasuyuki
, p. 583 - 584 (2003)
(1R,2S)-trans-2-Arylcyclohexanols of high enantiomerically purity were obtained by the simple stirring of the corresponding (±)-arylcyclohexanols with 3β-acetoxyetienic acid, DCC, and DMAP at room temperature.
