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136132-58-6

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136132-58-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 136132-58-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,6,1,3 and 2 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 136132-58:
(8*1)+(7*3)+(6*6)+(5*1)+(4*3)+(3*2)+(2*5)+(1*8)=106
106 % 10 = 6
So 136132-58-6 is a valid CAS Registry Number.

136132-58-6Downstream Products

136132-58-6Relevant articles and documents

A New Route to 1,3-Disubstituted Benzothiophenes

Okuda, Yoshihiro,Lakshmikantham, M. V.,Cava, Michael P.

, p. 6024 - 6026 (2007/10/02)

A facile synthesis of 1,3-dichlorobenzothiophene 3 is described.Lithium-chlorine exchange of 3, followed by reaction with various electrophiles, provides a route to 1-acyl-3-chlorobenzothiophenes, as well as to the very stable 1,3-bis(tert-butyldimethylsilyl)benzothiophene (9).Compound 9 unddergoes silyl replacement reactions with acylating agents, as well as an unusuak oxidative desilylation by I2 or TiCl4, to give the capped disilylated dimer, trimer, and tetramer (16,17, and 18) of benzothiophene.

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