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281193-52-0

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281193-52-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 281193-52-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,8,1,1,9 and 3 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 281193-52:
(8*2)+(7*8)+(6*1)+(5*1)+(4*9)+(3*3)+(2*5)+(1*2)=140
140 % 10 = 0
So 281193-52-0 is a valid CAS Registry Number.

281193-52-0Downstream Products

281193-52-0Relevant articles and documents

Synthesis of 2-fluoro analogues of frontalin

Bravo, Pierfrancesco,Frigerio, Massimo,Ono, Taizo,Panzeri, Walter,Pesenti, Cristina,Sekine, Akiko,Viani, Fiorenza

, p. 1387 - 1389 (2007/10/03)

The synthesis of enantiomerically and diastereomerically pure (-)- (1R,2R,5R)- and (-)-(1R,2S,5R)-2-fluoro frontalin (7) starting from (+)-(1S)- menthyl-(R)-toluene-4-sulfinate, methylmagnesium bromide, methyl fluoroacetate, 4-pentenyl bromide and diazome

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