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142754-45-8

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142754-45-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 142754-45-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,2,7,5 and 4 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 142754-45:
(8*1)+(7*4)+(6*2)+(5*7)+(4*5)+(3*4)+(2*4)+(1*5)=128
128 % 10 = 8
So 142754-45-8 is a valid CAS Registry Number.

142754-45-8Downstream Products

142754-45-8Relevant articles and documents

Iminophosphorane-mediated annelation of a pyridine ring into a preformed pyridine one: Synthesis of naphthyridine, pyrido[1,2-c]pyrimidine and pyrido[1,2-c]quinazoline derivatives

Molina,Lorenzo,Aller

, p. 4601 - 4616 (2007/10/02)

Aza Wittig-type reaction of iminophosphoranes 2 and 6, prepared from 4- and 3-formylpyridines by sequential treatment with ethyl azidoacetate and triphenylphosphine, with isocyanates leads to 2,7-naphthyridine 4, 1,7-naphthrydine 7 and 2,6-naphthyridine 8

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