20268-15-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20268-15-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,2,6 and 8 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 20268-15:
(7*2)+(6*0)+(5*2)+(4*6)+(3*8)+(2*1)+(1*5)=79
79 % 10 = 9
So 20268-15-9 is a valid CAS Registry Number.
20268-15-9Relevant articles and documents
Optically Active Selenoxides: Chromatographic Separation and Absolute Configuration
Shimizu, Toshio,Kobayashi, Michio
, p. 3399 - 3403 (2007/10/02)
Asymmetric diaryl selenoxides were optically resolved by medium pressure column chromatography on an optically active column.The absolute configuration of the optically active selenoxides was estimated by comparison of their circular dichroism spectra wit
