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203872-24-6

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203872-24-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 203872-24-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,3,8,7 and 2 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 203872-24:
(8*2)+(7*0)+(6*3)+(5*8)+(4*7)+(3*2)+(2*2)+(1*4)=116
116 % 10 = 6
So 203872-24-6 is a valid CAS Registry Number.

203872-24-6Downstream Products

203872-24-6Relevant articles and documents

Isoxazolinoisoquinoline Heterocycles via Solid-Phase Reinsert and Suzuki Reactions

Lorsbach, Beth A.,Bagdanoff, Jeffrey T.,Bryan Miller,Kurth, Mark J.

, p. 2244 - 2250 (2007/10/03)

A traceless solid-phase synthesis strategy has been developed that delivers novel isoxazolinoisoquinoline heterocycles. The process consists of solid-phase Reissert formation (isoquinoline → I), Suzuki coupling lithiation, and subsequent C1-alkylation (I → II), and exo-olefin selective 1,3-dipolar nitrile oxide cycloaddition followed by Reissert hydrolysis (II → III) to liberate the targeted heterocycle.

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