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81494-56-6

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81494-56-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81494-56-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,4,9 and 4 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 81494-56:
(7*8)+(6*1)+(5*4)+(4*9)+(3*4)+(2*5)+(1*6)=146
146 % 10 = 6
So 81494-56-6 is a valid CAS Registry Number.

81494-56-6Downstream Products

81494-56-6Relevant articles and documents

Syntheses with Aliphatic Dialdehydes, XXXII. Syntheses and Reactions of N-Substituted 2-Aminomalondialdehydes

Reichardt, Christian,Rust, Ulrich

, p. 236 - 245 (2007/10/02)

The 2-aminomalondialdehyde bis 2 and some of its N-monosubstituted derivatives 7a-d as well as the o-carboxy benzoyl malondialdehyde 12 have been prepared.With heterocyclic imonium salts these amino malondialdehyde derivatives form, by a twofold condensation reaction, the γ-acylamino-substituted pentamethine cyanine dyes 15a-c, 17, and 18a-b, the UV/Vis and 13C NMR spectra of which are recorded with respect to the influence of the γ-substituent on these spectra. - Key words: 2-Aminomalondialdehyde Derivatives, γ-Acylaminopentamethinecyanine Dyes, UV/Vis Spectra, 13C NMR Spectra

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