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161117-87-9

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161117-87-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 161117-87-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,1,1,1 and 7 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 161117-87:
(8*1)+(7*6)+(6*1)+(5*1)+(4*1)+(3*7)+(2*8)+(1*7)=109
109 % 10 = 9
So 161117-87-9 is a valid CAS Registry Number.

161117-87-9Downstream Products

161117-87-9Relevant articles and documents

A Simple Method for the Protection of Aryl Amines as their t-Butylcarbamoyl (Boc) Derivatives

Kelly, Terence A.,McNeil, Daniel W.

, p. 9003 - 9006 (1994)

It has been found that aryl amines can be directly protected as their Boc derivatives by treatment of the amine with two equivalents of NaHMDS in THF followed by one equivalent of di-t-butyldicarbonate.This procedure works on a wide variety of both electron-rich and electron-deficient aryl amines.

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