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131742-16-0

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131742-16-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 131742-16-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,7,4 and 2 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 131742-16:
(8*1)+(7*3)+(6*1)+(5*7)+(4*4)+(3*2)+(2*1)+(1*6)=100
100 % 10 = 0
So 131742-16-0 is a valid CAS Registry Number.

131742-16-0Relevant articles and documents

Simplified analogues of ritanserin and their affinity at 5-HT(2A), 5- HT(2B) and 5-HT(2C) serotonin receptors

Claudi, Francesco,Scoccia, Loredana,Giorgioni, Gianfabio,Marucci, Gabriella,Di Stefano, Antonio,Gessi, Stefania,Siniscalchi, Anna,Borea, Pier Andrea

, p. 705 - 713 (1998)

The 5-HT2 serotonin antagonist ritanserin (6-(2-[4-[bis(4- fluorophenyl)methylene]-l-piperidinyl]ethyl)-7-methyl-5H-thiazole[3,2- a]pyrimidin-5-one, 2) binds with high affinity to 5-HT(2A), 5-HT(2B) and 5- HT(2C) serotonin receptors. With the aim of exploring how simplification of the thiazolepyrimidinone nucleus of 2 affects the affinity and selectivity for 5-HT(2A), 5-HT(2B) and 5-HT(2C) subtypes, some derivatives of 4-[bis(4- fluorophenyl)methylene]piperidine were synthesized, and their 5-HT(2A) and 5- HT(2C) receptor binding affinities and 5-HT(2B) antagonistic affinity evaluated. The new compounds bind the three 5-HT2 subtypes with lower affinity than did 2. Simplification of the thiazolepyrimidinone nucleus of ritanserin has only slight influence on the selectivity for 5-HT2 subtypes. The results suggest that the thiazolepyrimidinone moiety participates in key binding interactions and is determinant for high affinity at 5-HT2 receptor subtypes. Some derivatives showed antagonistic activity at 5-HT(2A) receptor.

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