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20231-45-2

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20231-45-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20231-45-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,2,3 and 1 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 20231-45:
(7*2)+(6*0)+(5*2)+(4*3)+(3*1)+(2*4)+(1*5)=52
52 % 10 = 2
So 20231-45-2 is a valid CAS Registry Number.
InChI:InChI=1/C10H14O2/c1-9-4-3-7(5-8(9)12)10(9,2)6-11/h6-7H,3-5H2,1-2H3

20231-45-2Upstream product

20231-45-2Downstream Products

20231-45-2Relevant articles and documents

Synthesis, structure and chiroptical spectra of the bicyclic α-diketones, imides and dithioimides related to santenone

Polonski, Tadeusz,Milewska, Maria J.,Gdaniec, Maria

, p. 3113 - 3122 (2007/10/03)

Isomeric α-diketones, imides and dithioimides related to santenone were prepared in a multistep synthesis from (+)-camphor and their CD spectra compared with those of analogous chromophoric systems related to camphor. In the case of conformationally rigid α-diketones the methyl substituents at C-7, lying on the symmetry plane of the chromophore, exert only a weak contribution to the n-π* Cotton effects. In contrast, the Cotton effect magnitudes of the anhydrides, imides and dithioimides are significantly affected by the substituents at C-8. The steric interaction of these chromophores with the syn-methyl group at C-8, leading to the chromophore distortion, was confirmed by X-ray crystallographic studies. Copyright (C) 2000 Elsevier Science Ltd.

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