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448914-21-4

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448914-21-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 448914-21-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,8,9,1 and 4 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 448914-21:
(8*4)+(7*4)+(6*8)+(5*9)+(4*1)+(3*4)+(2*2)+(1*1)=174
174 % 10 = 4
So 448914-21-4 is a valid CAS Registry Number.

448914-21-4Downstream Products

448914-21-4Relevant articles and documents

4-(1-Benzotriazolyl)-5-nitrophthalonitrile as a highly active substrate in aromatic nucleophilic substitution reactions

Smirnov, Alexey V.,Abramov, Igor G.,Plakhtinskii, Vladimir V.,Krasovskaya, Galina G.

, p. 72 - 74 (2007/10/03)

The title compound was synthesised, and its derivatives were prepared in high yields using the selective substitution of O-, S- and N-nucleophiles for the nitro group; an activating effect of the benzotriazolyl moiety on the above reactions was found.

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