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54737-25-6

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54737-25-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 54737-25-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,4,7,3 and 7 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 54737-25:
(7*5)+(6*4)+(5*7)+(4*3)+(3*7)+(2*2)+(1*5)=136
136 % 10 = 6
So 54737-25-6 is a valid CAS Registry Number.

54737-25-6Relevant articles and documents

A modular approach to the bisbenzylisoquinoline alkaloids tetrandrine and isotetrandrine

Antes, Iris,Bracher, Franz,Meixner, Maximilian,Schütz, Ramona

, p. 3047 - 3068 (2020)

An efficient racemic total synthesis of the bisbenzylisoquinoline alkaloids tetrandrine and isotetrandrine in four different routes is reported herein. Key steps of the synthesis include N-acyl Pictet-Spengler condensations to access the tetrahydroisoquin

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