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349554-59-2

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349554-59-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 349554-59-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,4,9,5,5 and 4 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 349554-59:
(8*3)+(7*4)+(6*9)+(5*5)+(4*5)+(3*4)+(2*5)+(1*9)=182
182 % 10 = 2
So 349554-59-2 is a valid CAS Registry Number.

349554-59-2Relevant articles and documents

THE ISOPROPYLIDENATION OF D-RIBOSE DIETHYL DITHIOACETAL AND RIBITOL. A NEW SYNTHESIS OF α- AND β-D-RIBOFURANOSYLETHYNE via 2,3:4,5-DI-O-ISOPROPYLIDENE-aldehydo-D-RIBOSE

Aslani-Shotorbani, Gaffar,Buchanan, J. Grant,Edgar, Alan R.,Shahidi, Parvin K.

, p. 37 - 52 (1985)

The reaction of D-ribose diethyl dithioacetal with acetone and sulphuric acid in the presence of anhydrous copper sulphate gives the 2,3:4,5-di-O-isopropylidene derivative 14 (40percent) and the isomeric 2,5:3,4-di-O-isopropylidene acetal 17 (40percent),

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