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75267-77-5

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75267-77-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 75267-77-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,2,6 and 7 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 75267-77:
(7*7)+(6*5)+(5*2)+(4*6)+(3*7)+(2*7)+(1*7)=155
155 % 10 = 5
So 75267-77-5 is a valid CAS Registry Number.

75267-77-5Relevant articles and documents

Photochemical Syntheses of 1,2-Diazepines. 11. Regiospecific Synthesis of 1,2-Dihydro-1,2-diazepin-3-ones

Kiguchi, Toshiko,Schuppiser, Jean-Luc,Schwaller, Jean-Claude,Streith, Jacques

, p. 5095 - 5100 (2007/10/02)

Starting from 2-chloropyridine 7, a series of 1,2-diazepin-3-ones 16 was prepared by a five-step synthesis.The key intermediates were the bicyclic oxadiazolium salts 10 which led, through a methoxide ion induced ring opening, to the expected 2-methoxypyri

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