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133160-98-2

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133160-98-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 133160-98-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,1,6 and 0 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 133160-98:
(8*1)+(7*3)+(6*3)+(5*1)+(4*6)+(3*0)+(2*9)+(1*8)=102
102 % 10 = 2
So 133160-98-2 is a valid CAS Registry Number.

133160-98-2Relevant articles and documents

Reaction of α,β-alkynylketones with β-amino alcohols: Pseudoephedrine- assisted cleavage of triple bond via formal internal redox process

Vasilevsky, Sergei F.,Davydova, Maria P.,Mamatuyk, Victor I.,Pleshkova, Nadezhda V.,Fadeev, Dmitry S.,Alabugin, Igor V.

, p. 377 - 379 (2015/10/19)

Reaction of 3-aryl-1-(3,4,5-trimethoxyphenyl)prop-2-yn-1-ones with (+)-pseudoephedrine leads to products of alkyne moiety cleavage, namely, 1-(3,4,5-trimethoxyphenyl)ethanone and N-(1-hydroxy-1-phenylprop-2-yl)-N-methylbenzamides. In the course of the process one of alkyne carbons undergoes a formal reduction to a Me group, whereas the other one is oxidized to a C(O)NRR' moiety.

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