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1227745-54-1

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1227745-54-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1227745-54-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,7,7,4 and 5 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1227745-54:
(9*1)+(8*2)+(7*2)+(6*7)+(5*7)+(4*4)+(3*5)+(2*5)+(1*4)=161
161 % 10 = 1
So 1227745-54-1 is a valid CAS Registry Number.

1227745-54-1Relevant articles and documents

Exploring the one-pot C-acylation of cyclic 1,3-diones with unactivated carboxylic acid

Goncalves, Sylvie,Nicolas, Marc,Wagner, Alain,Baati, Rachid

supporting information; experimental part, p. 2348 - 2350 (2010/05/19)

The use of DCC, triethylamine, and 4-dimethylaminopyridine in dichloromethane provides a general and standard one-pot procedure for the C-acylation of cyclic 1,3-diones with a wide range of carboxylic acids, giving rise to β-triketones in good to excellent yields.

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