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92054-20-1

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92054-20-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 92054-20-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,2,0,5 and 4 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 92054-20:
(7*9)+(6*2)+(5*0)+(4*5)+(3*4)+(2*2)+(1*0)=111
111 % 10 = 1
So 92054-20-1 is a valid CAS Registry Number.

92054-20-1Downstream Products

92054-20-1Relevant articles and documents

Characterization of amino acids and steroids by fluorine-19 nuclear magnetic resonance spectrometry of p-fluorobenzoyl derivatives

Spratt,Meng,Dorn

, p. 76 - 81 (2007/10/02)

The utility of p-fluorobenzoyl chloride as an analytical **1**9F NMR reagent to characterize sterols and amino acids is reported. The **1**9F chemical shift data for approximately 30 sterols and amino acids are presented. The interaction of the p-fluorobenzoyl group with the steroid ring system makes a significant contribution to the **1**9F chemical shift of these steroid derivatives. These results suggest a convenient technique for characterizing different steroids (e. g. , estrogens, pregnanes, androstanes, etc. ).

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