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34660-89-4

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34660-89-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 34660-89-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,4,6,6 and 0 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 34660-89:
(7*3)+(6*4)+(5*6)+(4*6)+(3*0)+(2*8)+(1*9)=124
124 % 10 = 4
So 34660-89-4 is a valid CAS Registry Number.

34660-89-4Downstream Products

34660-89-4Relevant articles and documents

ν-Triazolines, XXVI. 1,2,5-Trisubstituted 3-Pyrrolecarbaldehydes from N-Substituted Oxazolium-5-olates and 5-Amino-4,5-dihydro-4-methylene-ν-triazoles

Erba, Emanuela,Gelmi, Maria Luisa,Pocar, Donato,Trimarco, Pasqualina

, p. 1083 - 1089 (2007/10/02)

Die Cycloaddition von einigen symmetrisch und unsymmetrisch substituierten N-substituierten Oxazolium-5-olaten (2) an 5-Amino-4,5-dihydro-4-methylen-ν-triazole (1) wird beschrieben.Durch regiospezifische Cycloaddition entstehen instabile Cycloaddukte, die sofort Kohlendioxid und Stickstoff unter Umlagerung zu 1,2,5-trisubstituierten 3-Pyrrolcarbaldehyd-anilen (3) eliminieren.Die Anile werden leicht zu den entsprechenden 1,2,5-trisubstituierten 3-Pyrrolcarbaldehyden (4) hydrolysiert.

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