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77603-23-7

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77603-23-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77603-23-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,6,0 and 3 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 77603-23:
(7*7)+(6*7)+(5*6)+(4*0)+(3*3)+(2*2)+(1*3)=137
137 % 10 = 7
So 77603-23-7 is a valid CAS Registry Number.

77603-23-7Downstream Products

77603-23-7Relevant articles and documents

ACYLATION OF ACYCLIC ENAMINES WITH AN EXCESSIVE AMOUNT OF PYRIDINECARBONYL CHLORIDES

Naito, Takeaki,Ninomiya, Ichiya

, p. 735 - 738 (2007/10/02)

Acylation of the acyclic enamines (1a and d) and (6a) with an excessive amount of isonicotinoyl or nicotinoyl chloride provided a simple preparation of the spiranes (2, 3, and 7) or the 1,6-naphtyridines (4 and 5) respectively, of which the latter has an analogous structure of nalidixic acid, a powerful antibacterial agent.

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