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274250-98-5

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274250-98-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 274250-98-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,7,4,2,5 and 0 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 274250-98:
(8*2)+(7*7)+(6*4)+(5*2)+(4*5)+(3*0)+(2*9)+(1*8)=145
145 % 10 = 5
So 274250-98-5 is a valid CAS Registry Number.

274250-98-5Downstream Products

274250-98-5Relevant articles and documents

4-Quinolylmethyl and 1-naphthylmethyl as benzyl-type protecting groups of carboxylic acids removable by homogeneous palladium-catalyzed hydrogenolysis

Boutros, André,Legros, Jean-Yves,Fiaud, Jean-Claude

, p. 2239 - 2246 (2007/10/03)

4-Quinolylmethyl (4-QUI) esters are reduced by palladium-catalyzed hydrogenolysis by formate anion. The reaction conditions are compatible with reducible substituents or functional groups as aromatic bromo, alkene, aldehyde, ketone, nitrile, ethyl and benzyl esters. An allyl ester is cleaved selectively in the presence of a 4-QUI ester. 1-Naphthylmethyl (1-NAP) esters of α-amino acids could be deprotected without any racemization by the same methodology. (C) 2000 Elsevier Science Ltd.

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