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781641-15-4

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781641-15-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 781641-15-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,8,1,6,4 and 1 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 781641-15:
(8*7)+(7*8)+(6*1)+(5*6)+(4*4)+(3*1)+(2*1)+(1*5)=174
174 % 10 = 4
So 781641-15-4 is a valid CAS Registry Number.

781641-15-4Downstream Products

781641-15-4Relevant articles and documents

Studies with enaminonitriles: Synthesis and chemical reactivity of 2-phenyl-3-piperidin-1-yl acrylonitrile under microwave heating

Salaheldin, Abdellatif M.,Alphy, Maryana K.

, p. 307 - 310 (2008/09/20)

(Chemical Equation Presented) Benzyl cyanide reacts with triethylorthoformate and piperidine in DMF solution to yield the title compound 2. This reacted with aromatic amines to yield either aminoacrylonitriles orquinoline depending on reaction conditions and substitution pattern on the aromatic amine. The reaction of compound 2 with hydrazine hydrate could only be effected in the microwave oven and resulted in the formation of aminopyrazole 7. Diazotization of 7 and coupling with an active methylene reagent afforded pyrazolo[5,1-c]-[1,2,4]triazine derivatives.

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