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1217089-18-3

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1217089-18-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1217089-18-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,7,0,8 and 9 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1217089-18:
(9*1)+(8*2)+(7*1)+(6*7)+(5*0)+(4*8)+(3*9)+(2*1)+(1*8)=143
143 % 10 = 3
So 1217089-18-3 is a valid CAS Registry Number.

1217089-18-3Downstream Products

1217089-18-3Relevant articles and documents

Design, synthesis, and evaluation of 2-aryl-7-(3′,4′-dialkoxyphenyl)-pyrazolo[1,5-a]pyrimidines as novel PDE-4 inhibitors

Kim, Ikyon,Song, Jong Hwan,Park, Chang Min,Jeong, Joon Won,Kim, Hyung Rae,Ha, Jin Ryul,No, Zaesung,Hyun, Young-Lan,Cho, Young Sik,Sook Kang, Nam,Jeon, Dong Ju

scheme or table, p. 922 - 926 (2010/06/22)

Described herein is design, synthesis, and biological evaluation of novel series of 2-aryl-7-(3′,4′-dialkoxyphenyl)-pyrazolo[1,5-a]pyrimidines acting as inhibitors of type 4 phosphodiesterase (PDE4) which is known as a good target for the treatment of asthma and COPD. For this purpose, structure optimization was conducted with the aid of structure-based drug design using the known X-ray crystallography. Also, biological effects of these compounds on the target enzyme were evaluated by using in vitro assays, leading to the potent and selective PDE-4 inhibitor (IC50 10 nM).

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