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137557-08-5

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137557-08-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 137557-08-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,5,5 and 7 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 137557-08:
(8*1)+(7*3)+(6*7)+(5*5)+(4*5)+(3*7)+(2*0)+(1*8)=145
145 % 10 = 5
So 137557-08-5 is a valid CAS Registry Number.

137557-08-5Relevant academic research and scientific papers

PYRIMIDINONES AS CASEIN KINASE II (CK2) MODULATORS

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Page/Page column 46, (2009/01/20)

A compound having Formula I :or a pharmaceutically acceptable salt thereof, wherein X, R, R and R are as defined in the specification; pharmaceutical compositions thereof; and methods of use thereof. The compounds of Fomula I are inhibitors of Casein kina

Photocyclization Reactions. Part 1. Synthesis of Dihydrobenzofuranols Using Photocyclization of 2-Alkoxybenzaldehydes, 2'-Alkoxyacetophenones, 2-Formylphenoxyacetic Acids and 2-Acetylphenoxyacetic Acids

Horaguchi, Takaaki,Tsukada, Chikara,Hasegawa, Eietsu,Shimizu, Takahachi,Suzuki, Tsuneo,Tanemura, Kiyoshi

, p. 1261 - 1272 (2007/10/02)

Photocyclization reactions were carried out on 2-alkoxybenzaldehydes 1a-f, 2'-alkoxyacetophenones 2a-h, 2-formylphenoxyacetic acids 1i-l and 2-acetylphenoxyacetic acids 2i-m.Irradiation opf 1a-f and 2a-h in acetonitrile gave the corresponding dihydrobenzofuranols 3, 5 and dihydroisobenzofuranols 4, 6.Using carboxylic acids 1i-l, 2i-m as starting materials, decarboxylation occurred immediately to give the corresponding ethers 1a-d, 2a-e.Further irradiation of the solution afforded dihydrobenzofuranols 3,5 and dihydroisobenzofuranols 4, 6.Substituent effects on photocyclization and reaction pathways are discussed.

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