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1138334-91-4

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1138334-91-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1138334-91-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,3,8,3,3 and 4 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1138334-91:
(9*1)+(8*1)+(7*3)+(6*8)+(5*3)+(4*3)+(3*4)+(2*9)+(1*1)=144
144 % 10 = 4
So 1138334-91-4 is a valid CAS Registry Number.

1138334-91-4Downstream Products

1138334-91-4Relevant academic research and scientific papers

Triflic acid mediated dealkylative lactonisation via NMR-observable alkyloxonium intermediates

Munoz, M. Paz,Lloyd-Jones, Guy C.

, p. 516 - 524 (2009)

Trifluoromethanesulfonic acid (TfOH) efficiently induces the dealkylative cyclisation of pent-4-enoates to generate γ-lac-tones with high selectivity. For primary alkyl esters bearing an additional alkene, only monolactonisation occurs, even in the presen

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