252289-34-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 252289-34-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,2,2,8 and 9 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 252289-34:
(8*2)+(7*5)+(6*2)+(5*2)+(4*8)+(3*9)+(2*3)+(1*4)=142
142 % 10 = 2
So 252289-34-2 is a valid CAS Registry Number.
252289-34-2Relevant academic research and scientific papers
Stereospecific synthesis of (-)-β-turmerone and (-)-bisacurol
Kreiser, Wolfgang,Koerner, Ferdinand
, p. 1610 - 1629 (2007/10/03)
The structure of (+)-β-turmerone ((+)-1a), a constituent of the rhizomes of Curcuma longa LINN., and Curcuma xanthorriza, is established as (1'R,6S)-2-methyl-6-(4'-methylenecyclohex-2'-en-1'-yl)hept-2-en-4-one by synthesis of its enantiomer (-)-1a, and of
