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1561811-45-7

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1561811-45-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1561811-45-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,5,6,1,8,1 and 1 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1561811-45:
(9*1)+(8*5)+(7*6)+(6*1)+(5*8)+(4*1)+(3*1)+(2*4)+(1*5)=157
157 % 10 = 7
So 1561811-45-7 is a valid CAS Registry Number.

1561811-45-7Relevant articles and documents

Design, synthesis, and evaluation of pyrrolo[2,1-f][1,2,4]triazine derivatives as novel hedgehog signaling pathway inhibitors

Xin, Minhang,Zhang, Liandi,Tang, Feng,Tu, Chongxing,Wen, Jun,Zhao, Xinge,Liu, Zhaoyu,Cheng, Lingfei,Shen, Han

, p. 1429 - 1440 (2014/03/21)

A novel series of Hh signaling pathway inhibitors were designed by replacing the pyrimidine skeleton of our earlier reported lead compound 1 with pyrrolo[2,1-f][1,2,4]triazine scaffold. Starting from this new scaffold, SAR exploration was investigated based on structural modification on A-ring, C-ring and D-ring. And several much potent compounds were studies in vivo to profile their pharmacokinetic properties. Finally, optimization leads to the identification of compound 19a, a potent Hh signaling pathway inhibitor with superior potency in vitro and satisfactory pharmacokinetic properties in vivo.

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