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27164-13-2

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27164-13-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 27164-13-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,7,1,6 and 4 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 27164-13:
(7*2)+(6*7)+(5*1)+(4*6)+(3*4)+(2*1)+(1*3)=102
102 % 10 = 2
So 27164-13-2 is a valid CAS Registry Number.

27164-13-2Relevant articles and documents

Chemoselective zinc/HCl reduction of halogenated β-nitrostyrenes: Synthesis of halogenated dopamine analogues

Maresh, Justin J.,Ralko, Arthur A.,Speltz, Tom E.,Burke, James L.,Murphy, Casey M.,Gaskell, Zachary,Girel, Joann K.,Terranova, Erin,Richtscheidt, Conrad,Krzeszowiec, Mark

, p. 2891 - 2894 (2015/02/02)

A detailed account regarding the synthesis of 2- and 5-halogenated dopamine is given. The key step is a chemoselective reduction of a nitrostyrene by Zn/HCl at 0 °C. These conditions represent a simple, low-cost alternative to reduction by water-sensitive hydride donors and two-step procedures. Under these conditions, aryl fluoride, chloride, and bromide groups are stable. However, iodine undergoes significant reductive dehalogenation.

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