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74003-31-9

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74003-31-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 74003-31-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,0,0 and 3 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 74003-31:
(7*7)+(6*4)+(5*0)+(4*0)+(3*3)+(2*3)+(1*1)=89
89 % 10 = 9
So 74003-31-9 is a valid CAS Registry Number.

74003-31-9Relevant articles and documents

Lactams as EP4 prostanoid receptor agonists. 3. Discovery of N-ethylbenzoic acid 2-pyrrolidinones as subtype selective agents

Elworthy, Todd R.,Brill, Emma R.,Chiou, San-San,Chu, Frances,Harris, Jason R.,Hendricks, R. Than,Huang, Jane,Kim, Woongki,Lach, Leang K.,Mirzadegan, Tara,Yee, Calvin,Walker, Keith A. M.

, p. 6124 - 6127 (2004)

Two distinct synthetic schemes were applied to access heteroatom-containing α-chain lactams or lactams terminated as aryl acids. The latter lactams were devised using a pharmacophore for EP4 receptor activity. γ-Lactams were characterized for their prostanoid EP receptor affinities and EP 4 activity and found to be selective for the EP2 and EP4 receptors or selective for the EP4 subtype. Benzoic acid 17 displayed enhanced in vivo exposure relative to 3.

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