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40173-25-9

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40173-25-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 40173-25-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,1,7 and 3 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 40173-25:
(7*4)+(6*0)+(5*1)+(4*7)+(3*3)+(2*2)+(1*5)=79
79 % 10 = 9
So 40173-25-9 is a valid CAS Registry Number.

40173-25-9Downstream Products

40173-25-9Relevant articles and documents

Phase-transfer-catalysed Additions. Part 13. A Convenient Synthesis of α,β-Diaryl-β-arylamino Ketones by Reaction of Alkyl Benzyl Ketones and Azomethines

Dryanska, Veneta,Tasheva, Donka,Mikhova, Bozhanka

, p. 418 - 419 (2007/10/03)

A number of α,β-diaryl-β-arylamino-propan-1-ones (3), -butan-2-ones (4), -pentan-3-ones (5), -hexan-3-ones (6) and -heptan-3-ones (7) have been prepared by phase-transfer-catalysed reaction of deoxybenzoin and some alkyl benzyl ketones with azomethines.

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