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188940-43-4

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188940-43-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 188940-43-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,8,9,4 and 0 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 188940-43:
(8*1)+(7*8)+(6*8)+(5*9)+(4*4)+(3*0)+(2*4)+(1*3)=184
184 % 10 = 4
So 188940-43-4 is a valid CAS Registry Number.

188940-43-4Relevant articles and documents

Discovery and synthesis of a potent sulfonamide ET(B) selective antagonist

Kanda, Yasuhiko,Takahashi, Tadashi,Araki, Yoshitaka,Konoike, Toshiro,Mihara, Shin-ichi,Fujimoto, Masafumi

, p. 1875 - 1878 (2007/10/03)

The synthesis and structure-activity relationships of a series of sulfonamide endothelin antagonists are described. In the course of our modification studies, we discovered ET(B) selective antagonists. The most potent compound 15f displays IC50 values of 1.7 μM and 0.002 μM to ET(A) and ET(B) receptors, respectively. (C) 2000 Elsevier Science Ltd. All rights reserved.

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