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139168-60-8

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139168-60-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 139168-60-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,1,6 and 8 respectively; the second part has 2 digits, 6 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 139168-60:
(8*1)+(7*3)+(6*9)+(5*1)+(4*6)+(3*8)+(2*6)+(1*0)=148
148 % 10 = 8
So 139168-60-8 is a valid CAS Registry Number.

139168-60-8Downstream Products

139168-60-8Relevant articles and documents

Silica-Gel-Catalysed Knoevenagel Condensation of Peptidyl Cyanomethyl Ketones with Aromatic Aldehydes and Ketones. A Novel Michael Acceptor Functionality for C-Modified Peptides: The Benzylidene and Alkylidene Cyanomethyl Ketone Function

Brillon, Denis,Sauve, Gilles

, p. 1838 - 1842 (1992)

Simple preparation of cyanomethyl ketone derivatives 5a-5b of N-acetylphenylalanine and N-acetylleucylphenylalanine is accomplished by condensation of the corresponding activated carboxylic acids 3a-3b and the carbanion of tert-butyl cyanoacetate to give

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